But when a new area is fueled by rain, the mammals migrate toward it in a set order to exploit it.

但当一个新的区域得到雨水的补给，哺乳动物就会按一定的顺序向它迁移以利用它。

youdao

But when a grassy area was planted with bushes, the children got much more into fantasy play, and the social hierarchy was now based on imagination and creativity.

但是，当一片草地上种植着灌木丛的时候，孩子们就会更多地参与到幻想游戏中，并且社会等级此时便建立在想象力和创造力的基础上。

youdao

But when a liar confesses, can you believe him?

但是当一个说谎者坦白时，你会相信他吗？

youdao

But when American warships arrived in Samoa, so did a big storm.

VOA: special.2010.07.08

I'm a little short but I was doing OK. But I did do some research when I saw this book last year.

虽然款项很少，但是我还做得不错,我去年看这本书的时候，做了些调查。

普林斯顿公开课 - 人性课程节选

which you'll think, only a ten or eleven year old, but when there is thirteen of them, it's a lot.

你会想，不就是十岁、十一岁的小孩嘛，但有十三个还是很多的。

大城市是否危险？ - SpeakingMax英语口语达人

But when a dictator came to power in Somalia the relationship soured in the 1980s.

BBC: Somaliland: Africa��s unofficial country

But when a game is a single-player, narrative-based affair, inevitably that appeal can wane.

BBC: Screenshot of Halo

But when a political party faces crisis, all of that goes out the window.

CNN: Commentary: 5 reasons GOP will rebound