When you can drag him away from his work, he can also be a devoted father.

当你能强迫他远离工作的时候，他也可以是个充满爱心的父亲。

《柯林斯英汉双解大词典》

I can think of at least three occasions when he arrived late.

我记得他至少迟到过三次。

《牛津词典》

He can be a real honey when he wants to be.

他高兴的时候挺招人喜欢的。

《牛津词典》

"We want it to be like a farmer, when he raises his crop, he can sell it in any town."

VOA: standard.2010.07.19

When he's in the army, he can get rid of Jesus by converting not to evil, but to nothing, to believe in nothing.

当他当兵的时候，以不去向罪恶堕落，选择做一个虚无主义者的方式。

耶鲁公开课 - 1945年后的美国小说课程节选

So, he writes: To the psychologist alone can such questions occur as: Why do we smile when pleased and not scowl?

他这样写到：,对哲学家本身说,会出现这些问题：,为什么开心时我们微笑而非皱眉？

耶鲁公开课 - 心理学导论课程节选

When he can, he delivers.

WHITEHOUSE: President Obama and President Sarkozy at the White House

We will only return the material to Julian if and when he can prove the he can store the material securely and handle it carefully and responsible.

FORBES: Ex-WikiLeaker Claims Defectors Took Control Of Leaks From Assange

Man stopped fighting with swords when rifles were invented, and you can rest assured that he will equally stop flying planes into buildings when he can fire a vehicle-launched cruise missile into Europe or America from a dirt road in the third world.

ECONOMIST: Responding to terror