我看不出来我们能做什么，并没有多少人会因为Facebook的改版而有什么改变。

I don't see what we can do about Facebook. Not enough people have changed their behaviors due to these changes.

youdao

为什么某些液体容易起泡，而有些则不行呢？

Why do certain liquids tend to foam while others do not?

youdao

这些颜色很瑰丽，但究竟为什么有些树会变成黄色或橙色，而有些树会变成红色或紫色，这个问题一直困扰着科学家。

The colours are magnificent, but the question of exactly why some trees turn yellow or orange, and others red or purple, is something which has long puzzled scientists.

youdao

But more important, it is what you are doing differently, how this has an impact on your life and that takes effort.

但更重要的是你们所做的改变是什么，这对你们的生活有怎样的影响，而那需要我们的努力。

哈佛公开课 - 幸福课课程节选

Now The Wasteland was the first poem to have footnotes, and you have to ask yourself: what do you have to think the poem is in order to think that it needs footnotes?

荒原》是第一首有脚注的诗歌，所以你们需要问问自己：,这首诗究竟有什么特别,而使得它必须要有脚注呢？

耶鲁公开课 - 1945年后的美国小说课程节选

What is India's strategic importance ? to the United States today? and the vice versa.

当今对美国来说，印度有什么,战略意义？而反之又如何。

普林斯顿公开课 - 国际座谈会课程节选