两次

The tide ebb s and flows twice in 24 hours.

潮水每24小时涨落两次。

Edmund: I'll give you two guesses.

爱德蒙：我让你猜两次。

Peonies were extremely popular in Victorian and Edwardian Britain, but they fell out of popularity between the two World Wars.

牡丹在维多利亚和爱德华时代很受欢迎，但在两次世界大战之间已经不再如此。

We measured every day to Shanghai and Campus temperature, twice every day, and recorded in the electronic bulletin board on the school, interested students can go to find out.

用英语回答，不用太难我们的工作：我们每天要测量上海和校园温度，每天两次，并且记录在学校电子公告牌上，有兴趣的同学可以去了解一下。

The styrene-acrylate spheres were coated with the TiO2 colloidal particles via electrostatic effect and hydrogen bond interactions with the increase of aging time, thus the film-forming capability of the solution was changed. The poor film-forming capability results in the formation of the porous structure with dense, homogeneous island morphology. Then the TiO2 porous films with dense pores can be obtained after two coating-dissolving cycles.

结果表明，TiO2溶胶与苯丙乳液混合后，陈化时间的延长有利于TiO2胶粒通过静电、氢键作用在苯丙乳液粒子表面形成吸附层，从而改变涂膜液的成膜性，形成较为密集、且均匀分布的岛状多孔结构，在此基础上经两次涂膜，即可获得具有致密孔洞的TiO2多孔薄膜。

Since I think may be due to intense exercise, electrotherapy lose weight and hot water bubble bath (because the uterus from the two organizations are at work, it has not been a doctor for testing).

我自认为原因可能是激烈运动、电疗减肥和泡热水浴(因为子宫内组织排出两次都是在上班时，所以未经过医生的化验)。

In addition she exhibited two national specialty winning Japanese Chins. She also owned and exhibited a beautiful BIS winning Vin Melca Elkhound bitch.

除此之外，Janet还带着她的日本狆参加了两次国际性的比赛并获奖，她的一条挪威猎麋母犬还赢得了BIS。

I do not want to so early in the embryo when two B-to do.

我不想再在胚胎这么早的时候就做两次B超。

In 2004, Emmons fired at the wrong target.

这已经是他连续两次在奥运会上痛失金牌的。

By comparing and analyzing the solar and interplanetary data of two typical fast halo Coronal Mass Ejections, we have found that the event far away from Coronal Holes caused a great Solar Energetic Particle event, but the event very close to CHs did not cause a major SEP event.

通过对比两次快速晕状日冕物质抛射事件，分析相应的日面和行星际的观测资料，发现源区距离冕洞较远的CME引起了极强的太阳高能粒子(Solar Energetic Particle，SEP)事件，而源区非常靠近冕洞的CME则没有引起大的SEP事件。

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。