查询词典 if and only if

You must except, nevertheless, Marcus Antonius, the half partner of the empire of Rome, and Appius Claudius, the decemvir and lawgiver; whereof the former was indeed a voluptuous man, and inordinate; but the latter was an austere and wise man: and therefore it seems that love can find entrance, not only into an open heart, but also into a heart well fortified, if watch be not well kept.

你可以看到，一切真正伟大的人物（无论是古人、今人，只要是其英名永铭于人类记忆中的），没有一个是因爱情而发狂的人：因为伟大的事业抑制了这种软弱的感憎。只有罗马的安东尼和克劳底亚是例外。前者本性就好色荒淫，然而后者却是严肃多谋的人。

If the shaft seal bad back, there will be large number of resin powder leaked, each class should be pressed for several Pan-gen still leakage phenomenon not only affects the sanitation, and increase the volume of maintenance and therefore a need to use The system forms a seal 4 gear is reasonable Screw conveyor is the use of motor driven rotary screw, the passage of materials in order to achieve the purpose of transportation machinery, it can level, tilt or vertical transmission, a simple structure, small cross sectional area, sealing, and easy to operate, easy maintenance, facilitate closure transportation and other advantages.

如果轴后端密封不好，就会有大量树脂粉泄漏，每个班要压好几次盘根，仍有泄漏现象，既影响了环境卫生，又增加了维修量，因此急需选用一种适用于该系统的密封形式 4传动装置的合理性螺旋输送机是利用电机带动螺旋回转，推移物料以实现输送目的的机械，它能水平、倾斜或垂直输送，具有结构简单、横截面积小、密封性好、操作方便、维修容易、便于封闭运输等优点。

Beijing Real Estate and Construction Bar Association Professional Committee of Liu Hua, deputy director of the Law Society: The contract agreement in the area, it seems to me there are at least two flaws: First, it agreed to construction area for the sale area, construction area is passed and the pool area and the area, and in this contract on the pool area also lacks transparency, developers will not tell you specific assessments where the location of the area, the specific area is the number, which for him provided an opportunity for fraud; Secondly, the contract agreed by the parties, permit the forecast area of 3% error, if the pool size increases as long as no more than 3%, you can only increase the pool for this increase the size back the principal.

北京地产及建造界律师协会专业委员会刘华副主任律师公会：合同协议，在该地区，在我看来至少有两个缺陷：第一，它同意建筑面积的销售区，建筑面积是通过和游泳池区和地区，并在此合同的游泳池也缺乏透明度，开发商不会告诉你具体评估那里的位置，面积，具体领域是的数目，这为他提供了一个机会，欺诈；其次，该合同约定，允许预测面积的3 ％的错误，如果池大小的增加，只要不超过3％，你只能增加池的大小增加本金。

Sometimes the neighbour's pigeons land on my windowledge Cooing softly Where the great poplar at the window has somehow grown beyond the fourth-floor roof They skim round its crown and back The sunlight on their fluffy feathers Alive day by day I keep coming indoors empty-handed And throwing book and jacket on the bed As the days hurry by I can bring scarcely anything home Even after days away Only you remain and the little room Living day by day We have grown used By an unspoken pact to the room's breadth A pair of pigeons cooing softly on the windowledge Which at many instants belong to us Day by day Dust that falls on book spines gradually yellows Perhaps it is otherwise That life, if it does, provides I know that the unwitting request is not excessive And that summer turns to autumn Perhaps fallen leaves will swirl after a night of rain It does not mean a return to green shade deep in sunlight A house-cleaning when leisure affords Feelings may come on latent even as Irrelevancies are spoken softly The instant when a first trembling on the lips teaches you happiness Lasts till the end of life A request always voiced unwittingly

有时候，邻家的鸽子落在我的窗台上咕咕地轻啼窗口的大杨树不知不觉间已高过了四层楼的屋顶它们轻绕那些树冠又飞回来阳光在蓬松的羽毛上那么温柔生命日复一日我往往空着手从街上回来把书和上衣掷在床上日子过得匆匆忙忙我时常不能带回来什么即使离家数日只留下你和这小小的屋子生活日复一日面对无声无息的默契我们已习惯了彼此间的宽容一对鸽子在窗台上咕咕地轻啼他们在许多瞬间属于我们日复一日灰尘落在书脊上渐渐变黄如果生活时时在给予那也许是另一回事我知道，那无意间提出的请求并不过份我知道，夏日正转向秋天也许一场夜雨过后就会落叶纷飞不是说再回到阳光下幽深的绿荫日子需要闲遐的时候把家收拾干净，即使轻声述说些无关紧要的事情感也会在其间潜潜走过当唇际间最初的战栗使你感知了幸福这一瞬已延伸到了生命的尽头而那些请求都是无意间说出的

Honey is a widely known natural food. Bees gathered the nectar in flowers and take it back, then process and condense it into this translucence, sticky and thick sweet liquid. It's a tough job to gather nectar. A bee can only get 20mg nectar per time. To get 1kg nectar, the worker bee need to fly 500,000-600,000 times and to produce 1kg honey, a worker bee needs to gather the nectar from 1500-1600 flowers. If a bee gathers nectar just in a place one kilometer away from its comb, then it needs to fly 3 kilometers to fulfill a honey bursa. And to produce 1kg honey, it needs to fly 360,000-450,000 kilometers, which equals to fly around the earth for 8.5-11 circles. So it's not exaggerated to say each drop of honey is a crystal of hard working.

蜂蜜是大家熟悉的天然食品，系蜜蜂采集植物花朵内的花蜜，带回巢内经酿制加工浓缩而成的半透明黏稠甜液，蜜蜂采花蜜工作非常辛苦，一只蜜蜂一次只能携品20毫克的花蜜，采集1公斤的花蜜，工蜂要飞行50-60万次，而生产1公克的蜂蜜，工蜂要采集约1500-1600朵花的花蜜，如果蜜蜂在离开蜂巢1公里的地方采集花蜜，每采满一个蜜囊，而要飞行3公里，制造1公斤的蜂蜜需飞行36-45万公里，等于绕地球8.5-11周，可见瓶中蜜滴滴皆辛苦。

Considering complicated conditions of the coastal dynamic environment, sediment dynamics, and together with the immature sediment itself, the predicted results will be somewhat limited if only with numerical model. So, in order to obtain microcosmic quantitative assessment and macroscopically understanding, numerical model is combined with field observations in the thesis. Firstly, the tidal current, SSC distribution, benthal deposited materials were basically analyzed by field observations. Then, the tidal current, SSC distribution, and the erosion and accumulation of the seabed were simulated with the numerical model of ECOMSED.

但由于海岸动力环境多变，泥沙运动复杂，加之泥沙问题本身的复杂性，如仅用数学模型，其预测结果将受到一定的限制，故本文采用实测调查与数学模型计算相结合的方法，宏观把握，微观量化，在掌握岚山港西突堤工程所在海域潮流、悬沙量分布、表层底质沉积物类型及特点基本态势的基础上，紧扣开发工程可能引起潮流场变化，分析工程后悬沙量、海底冲淤变化及其空间分布，进而建立潮流作用下的泥沙输运数学模型，首先比较好地模拟目前岚山港西突堤工程附近海域的潮流场和悬沙场，然后预测海湾沿岸可能引起的冲淤强度变化和冲淤区域的空间分布。

Pissed6-"My blood cries out for the vengeance of my people's blood.Which can only be repaid with at least twice as much blood.Or maybe three times as much blood.Like if you went to hell,and it was full of blood.And that blood was on fire.And it was raining blood.And maybe that would be enough blood.Ehh,but probably not."

我的血液在为我族人的血液呼喊着复仇至少必须用两倍的血液来偿还或者是三倍的血液而如果你去了地狱，那儿整个世界都是血，并且是燃烧着的血，并且天空也在下血而这可能就是足够多的血了呃，也许不是

On the other hand what incensed him more inwardly was the blatant jokes of the cabman and so on who passed it all off as a jest, laughing 1530 immoderately, pretending to understand everything, the why and the wherefore, and in reality not knowing their own minds, it being a case for the two parties themselves unless it ensued that the legitimate husband happened to be a party to it owing to some anonymous letter from the usual boy Jones, who happened to come across them at the crucial moment in a loving position locked in one another's arms, drawing attention to their illicit proceedings and leading up to a domestic rumpus and the erring fair one begging forgiveness of her lord and master upon her knees and promising to sever the connection and not receive his visits any more if only the aggrieved husband would overlook the matter and let bygones be bygones with tears in her eyes though possibly with her tongue in her fair cheek at the same time as quite possibly there were several others.

253另一方面，他在内心深处更感到愤慨的是出租马车夫之流恬不知耻地开的玩笑。他们把整个事件当成笑料，肆无忌惮地放声大笑，装作对事情的来龙去脉了如指掌，其实他们心里糊里糊涂。这本来纯粹是两个当事人的问题，除非那位合法的丈夫收到密探的一封匿名信，说是就在那两人相互亲昵地紧紧搂抱着的关键时刻，给他撞上了，从而就促使那位丈夫去留意他们那暖昧关系，导致家庭骚乱。犯了过错的妇人跪下来向当家的告饶，只要这位受了损害的丈夫肯对此事抱宽恕态度，既往不咎，她就答应今后与那人断绝关系，再也不接受他的访问。她热泪盈眶，然而兴许长着一张标致脸蛋儿的她，同时还偷偷吐舌头呢，因为很可能还有旁的好几位哩。

Also, Thank my teacher very much for He/She given me the growth and care for long time! As a nurse,Not only need a strong sense of responsibility, patience and chariness, The most important is have a sincere love, Let the sick as own relatives to care,I think I have these conditions, and Please believe me that I will not live up to your expectations of me if every teacher give me this opportunity, and In a progressive, positive, and unpretentious, undaunted to face my future nursing work, I will be my limited youth offere to this great career..

作为一名护士不仅需要很强的责任心、耐心和细心，更重要的是有一颗真挚的爱心，要把病人当作自己的亲人来照顾，我认为我具备这些条件，相信，如果各位老师给我这次机会，我一定不辜负所有人对我期望，以一种不断进取，积极向上，不骄傲，不气馁的人生态度来面对我以后的护理工作，将我有限的青春献给伟大的护理事业。

I now began to consider, that I might yet get a great many Things out of the Ship, which would be useful to me, and particularly some of the Rigging, and Sails, and such other Things as might come to Land, and I resolv'd to make another Voyage on Board the Vessel, if possible; and as I knew that the first Storm that blew must necessarily break her all in Pieces, I resolv'd to set all other Things apart, 'till I got every Thing out of the Ship that I could get; then I call'd a Council, that is to say, in my Thoughts, whether I should take back the Raft, but this appear'd impracticable; so I resolv'd to go as before, when the Tide was down, and I did so, only that I stripp'd before I went from my Hut, having nothing on but a Chequer'd Shirt, and a Pair of Linnen Drawers, and a Pair of Pumps* on my Feet.

这时我想到，船上还有许多有用的东西，尤其是那些绳索，帆布以及许多其他东西都可以搬上岸来。我决定只要可能，就再上船去一次。我知道，要是再刮大风暴，船就会彻底毁了。因此，我决定别的事以后再说，先把船上能搬下来的东西通通搬下来。这么一想，我就琢磨再次上船的办法。看来，再把大木排撑回去是不可能了。所以，我只好等潮水退后，像上次那样泅水过去。决心一下，我就立即付诸实施。不过，在我走出木屋之前，先脱掉衣服，只穿一件衬衫、一条短裤和一双薄底鞋。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。