但是有些时候你却很幸运。

But sometimes you get lucky.

youdao

但是有些时候，单方面的食物腐坏可能还只是小问题。

In some cases, decaying food is the least of the problem.

youdao

我们生活需要用钱，但是有些时候公司却是这个世界上你最不想踏足的地方。

We all have to pay the bills, but sometimes the office is literally the last place in the universe you want to be.

youdao

But I also think there are some cases, where it might actually be kinder and more humane to end a human life.

但是有些时候，可能，结束一个人的生命,才是更加仁慈与人道的。

普林斯顿公开课 - 人性课程节选

But when the concentration in the alloy is 50/50 by mole, something magical happens.

但是当合金中的浓度,是1比1的时候，有些神奇的事发生了。

麻省理工公开课 - 固态化学导论课程节选