It's not for me to say why he left.

不适宜由我说出他离开的原因。

《牛津词典》

It is useless to speculate why he did it.

对他为什么这么做妄加猜测毫无用处。

《牛津词典》

Tom wasted no time in telling me why he had come.

汤姆立即告诉我他来的原因。

《柯林斯英汉双解大词典》

Robert Fulton would say for the rest of his life that he had no idea why he said such a thing.

VOA: special.2009.01.14

The Athenians at least pay Socrates the tribute of taking him seriously, which is exactly why he is on trial.

雅典人至少,还尊重苏格拉底，并严肃地看待他，所以才审判他。

耶鲁公开课 - 政治哲学导论课程节选

And that's not very English and I think that's why he is a bit more shocking, not on English television,

那不是很有英国范儿，我想这就是为什么他有一些骇人的，不是在英国电视上，

认识戈登•拉姆齐吗？ - SpeakingMax英语口语达人

Mr Pehe agreed, adding that is why he thinks neither is likely to be elected.

BBC: Czechs look to post-Havel life

He's keen to explain why he's not buying the politics of the religious parties anymore.

NPR: Violence Precedes Pakistan Election

Fund manager Jeff Mortimer on his highest-rated holdings and why he remains underweight in energy.

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