How do I know that it is so?

吾知其然哉？

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

是 你确定？

How the mind is filled with their vast solitude!

人们内心被孤独塞满啊！

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

我不知道它们将恢复。

So how did Pando get to be so huge?

那么，潘多变得如此巨大？

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

“一家不治，治部？”

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

吾知天下然哉？

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

这是人必须不断学习原因。

How can listening to music do so much good?

听音乐会有这么多好处呢?

So why is Pollock so special?

波洛克就与众不同？

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

“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。 言此？

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

见得？－您不像善于结交朋友人。

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

但这一点还是不能很好地解释QWERTY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，但让人信服？

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

这就是他们在竞技场大小场馆中仍然能显示出如此细致设计。

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，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，许多二人晚餐约会最终都上床为结局呢？

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

还有，在这样一个干爽春日里，这封信会弄湿，也很令人费解。