How do I know that it is so?

吾何以知其然哉？

Yes, I am. And how can you be certain of this?

是的 你何以确定？

How the mind is filled with their vast solitude!

人们的内心何以被孤独塞满的啊！

I don't know how the they're going to bounce back.

我不知道它们将何以恢复。

So how did Pando get to be so huge?

那么，潘多何以变得如此巨大？

" Does the Minister run his Department any better than he runs his family? "

“一家不治，何以治部？”

How do I know that this effect is sure to hold thus all under the sky?

吾何以知天下然哉？

That is why it is so important to go on learning.

是人何以必须不断学习的因。

How can listening to music do so much good?

听音乐何以会有么多好处呢?

So why is Pollock so special?

何以波洛克的就与众不同？

" How d'you work that out? " asked Fred.

“何以见得？”弗雷德问。

With regret, I would have to say they were not. How so?

很遗憾，我必须说没有。 何以言此？

Who says I trust him? - You don't seem the kind to make friends easily.

何以见得？－您不像善于结交朋友的人。

But that doesn't quite explain how QWERTY got big.

但一点还是不能很好地解释QWERTY何以变得如此普遍。

Officials on both sides say their intent is peaceful, but who can believe them?

双方官员都表示旨在维护和平，但何以让人信服？

It's how they can be very detailed in their arena-sized designs.

就是他们何以在竞技场大小的场馆中仍然能显示出如此细致的设计。

Ms Merkel said Europe had not covered itself with glory and how it struggled to share the burden fairly.

她说欧洲尚未被荣光所覆盖，何以公平地分担责任呢。

Our Isabel Rosales shows us why scientists are now concerned about a possible environmental disaster.

本台记者伊莎贝尔·罗萨莱斯向我们揭示科学家何以对一场潜在环境灾难忧心忡忡。

If not so, why do so many couples who start the evening at dinner wind up in bed?

如若不然，何以许多二人的晚餐约会最终都以上床为结局呢？

The fact that it was wet in the dry spring weather was also most mystifying.

还有，在样一个干爽的春日里，封信何以会弄湿，也很令人费解。