在发现这封信之前，我曾自问：在什么情况下一部书才能成为无限。

Before I discovered this letter, I kept asking myself how a book could be infinite.

youdao

在什么情况下一些活动的结合会做得更好？

Under what circumstances does some combination of activities work best?

youdao

导游小姐嫣然一笑，解释道：“这里发生过好几起事故，都是迷路的游客在毫无压力的情况下一不小心掉下去的。”

The lady guide smiled and said, "There have been several accidents here in the past." Some tourist who got lost fell into the abyss without any pressure.

youdao

Milton surveys the wealth of literary tradition before him, and he resists its allure without the help of any human guide.

弥尔顿在他之前就调查过文学传统的宝藏，他在没有人帮助的情况下抗拒了这一诱惑。

耶鲁公开课 - 弥尔顿课程节选

And in today's situation, you have to do Master's in order to get good job,

在当今这种情况下，你必须读研才能找到一份好工作，

就业很难 - SpeakingMax英语口语达人

Kinases can, in many cases, serve as a mechanism for switching a protein on or switching a protein off.

激酶能够,在很多情况下,能够激活一种蛋白或者关闭一种蛋白

耶鲁公开课 - 生物医学工程探索课程节选