keep at 托福

"Mrs Smith is always condescending, so her neighbours keep her at arm's length."

"史密斯夫人总是自以高人一等,所以邻居们对她敬而远之。"

Cage was late home because she was kept behind at school to finish some work.

凯奇到家较迟, 学后她被留下来完成作业。

The map is kept at the local land registry.

地图存在当地土地登记处。

Vitamin C helps to keep colds and flu at bay.

维生素C能预防感冒和流感。

The old man distrusts banks so he keeps his money at home.

"老人不信任行,所以把钱在家里。"

Traffic regulations should always be kept to at any time.

任何时候都要遵守交通法规。

Absorption velocity increases with initial pressure, and keeps constant at different initial composition of uranium deuteride.

混合气体初始压力有利于铀吸氘速率，氘化铀初始氘量不影响铀吸氘速率。

Do not keep yapp back at me when you do not really know the entire picture.

你不知道整个真实情况，别对我哇啦哇啦叫不停。

I will take exams in two weeks, so I'm keeping my nose to the grindstone just at the moment.

我两星期后要考试, 而眼下正埋头苦读。