用手

For very long time, many research groups focus on using more than a stoichiometric amount of a chiral auxiliaries to obtain high enantioselectivity. There were mainly two sorts of processes reported on highly catalytic asymmetric addition of Grignard reagents to aldehydes. The former case was to transform Grignard reagent RMgX into other organometal reagents such as R_2Zn and R-Ti derivatives via complicated procedures at extremely low temperature. The later case was to link a chiral ligand to Mg in the form of organomagnesium amides or use chiral amine ligand catalyzing the alkylation of aldehydes.

格氏试剂对醛的不对称加成的报道大多需要大量的手性助剂以获得高的光学活性，而高度催化的格氏试剂对醛的不对称加成主要通过两种途径进行：一种是把格氏试剂转化成其他的有机金属试剂如R_2Zn和R-Ti化合物再对醛进行加成，反应通常在低温下进行；另一种是利用手性镁胺作为中间体或直接用手性胺催化来完成此反应。

Three female students are chatting on a bus. Because all the seats are taken. They are stanting holding onto some plastic rings hanging down from the bus rool. Two male students are sleeping in their seats. Then the bus arrives at a bus stop and an old woman gets on. She looks at the seats seeing no empty seats. She stands next to a female student and holds onto a plastic ring.

旁白：三个女生正在一辆公交车上聊天，因为车上所有的作为都被占了，她们只好一边用手握着挂在公交车顶上的一些塑料环，两个男生正在他们的座位上睡觉，这时公交车在下一站停了，一位老太太上来了，她上车后看到没有空位了，就站在一个女学生旁边并且用手抓着一个塑料环。

India Knight, author of The Thrift Book: Live Well and SpendLess, said:"Anything that has a label saying 'dry clean' can be washedby hand. Anything that has a label saying 'dry clean ONLY' can probablystill be washed by hand, but approach with caution."

不用干洗&，《节俭书：生活得好和化得少》的作者英蒂亚·奈特说：&任何标签上说'干洗'东西都可以用手洗，任何在标签上说'只能干洗'的东西也仍旧可能可以用手洗，但是操作上要小心。

Mozzie buster of the leaves is very large, is a tender green, which grow on long, thin stems, which is about 30 centimeters, about 2 mm thick, leaves a very small, very beautiful, close to the smell is very fragrant, hand - feels very smooth, like a baby's little hands, very cute, you just look at the last touch of your hand will be like perfume, like incense, and it also provides a long green hair, like a dense, long hair quickly, often pressure have thin stems Wanle Yao, every time when my mother to call it cut their hair, Mozzie buster it can not according to the sun, and if the sun shining or not watering, it's life would soon end.

驱蚊草的叶子非常多，是嫩绿色的，它长在长长的、细细的茎上，它长约30厘米，粗约2毫米，叶子很小，非常漂亮，靠近闻起来很香，用手摸起来很光滑，就像婴儿的小手，非常可爱，你只要在上摸一下你的手就会像香水一样香了，它长的又特像密密麻麻的绿色头发，头发长的很快，经常压得细细的茎弯了腰，每当这时妈妈就给它修剪头发，驱蚊草它不可以照阳光，要是照着阳光或没有浇水，它的生命很快就会结束。

Archaeologists remove loose silt by waving their hands or using soft brushes. Trowels are used for harder material.

发掘 考古学家通过用手拔或用软刷的方式除去松散的沙子，如果碰到更硬的东西，就要使用手铲。

Soft brushes. Trowels are used for harder material. They may have

发掘考古学家通过用手拔或用软刷的方式除去松散的沙子，如果碰到更硬的东西，就要使用手铲。

After starting Spinibarbus, many people used to tear up the hand or with teeth Yaodiao so very easily lead to infection, inflammation or even result in a ditch hand abscess.

起倒刺后，很多人习惯用手撕掉或者用牙咬掉，这样很容易引起感染，导致甲沟炎甚至手部脓肿。

She told me he never went down on her, because he did not like it, but that she did use her hand on him – though to get all the way there he had to do himself, she explained, gesturing with a hand to show she meant that to reach orgasm he had to wank himself.

她告诉我他从不吻她那里，但她是会用手帮助他的，尽管最后还是要靠他自己。她还用手做了个她男朋友自己达到高潮时的样子。

I remember when in May 14, the People's Liberation Army uncle who is squatting next to the rubble pile, hand块块that also heavier than the days of the rubble, they did not complain of any, and there is no dissatisfaction, they were just using it Two-hand rough, Pa Pa Yes.

记得在五月十四日时，解放军叔叔们，正蹲在瓦砾堆旁，用手扒开那一块块比天还重的瓦砾，他们没有任何的埋怨，也没有任何的不满，他们只是用那双粗糙的手，扒呀扒。

My baby is now more than 40 days, has never started one month, in the awake when she is sometimes the head with his hands, or with a small catch hair, I saw the ear hole, there is no flow concentration, she is also eating and sleeping, there was no unusual, may I ask what is the problem with this is it?

我的孩子现在40多天，从未满月时就开始，在醒着的时候她有时用手打头，或用小手抓头发，我看了耳朵孔，没有流浓，她在吃和睡方面也没有异常，请问这是有什么问题么？

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。