English words with the historical initial hw - are not too many; yet the highly frequent which, when, what, why, and where (who stands somewhat apart from this group) do not allow us to forget them.

以历史性字母组合hw -开头的英语单词不是太多了，然而使用频率很高的单词which, when, what, why以及where (where和这组词有点不同)仍然不允许我们忘记它们的存在。

youdao

Only when we know where a country has come from, could we possibly understand why the country is what it is today, and only then could we realize in which direction it is heading.

只有了解一个国家从哪里来，才能弄懂这个国家今天怎么会是这样而不是那样，也才能搞清楚这个国家未来会往哪里去和不会往哪里去。

youdao

This is what--this is where the humor for that baby comes in, which is you couldn't predict when the sound was coming and some aspect of that was what made it so funny then, what elicited the laughter.

这就是…,为什么那些婴儿那么好笑，因为你猜不到他们什么时候会笑,因此我们才觉得好笑，引起我们大笑。

耶鲁公开课 - 心理学导论课程节选

Marketing must discovery where buyers go, when, and for what information to achieve which goal for each stage.

FORBES: Influencing Your Buyer

Along a similar vein (forgive), we heard Katy Peters present TurboVote, which pushes electronically or via snail mail up-to-date who, what, where and when for exercising your most important civic duty.

FORBES: New York Revs Its Startup Engine

"They have a conversation where she does what you would imagine Leslie Knope would do when meeting Joe Biden, which is she loses control of herself a little bit, " hints Schur.

CNN: Vice President Joe Biden to guest on 'Parks and Recreation'