And do you know this one?

你们知道这是什么吗？

youdao

Do you know this one?

你了解这个吗？

youdao

youdao

Now, we are very gentle in this course with respect to knowing integrals, but this is one you have to know.

这门课对积分,的要求并不高，但这个积分你们必须会算。

麻省理工公开课 - 热力学与动力学课程节选

I don't know if you heard this morning, but there was news of the discovery of yet one more element.

我不知道你们今早听说了没，有一个新发现,一个新的元素的发现。

麻省理工公开课 - 固态化学导论课程节选

This is one picture that probably you all know what it is when you see it, it's a familiar looking image.

这张图片,一眼便知其中乾坤,太眼熟了

耶鲁公开课 - 生物医学工程探索课程节选

The Acer Aspire M5 Touch, for instance, is more or less the same 14-inch M5 Ultrabook we tested last year only, you know, this one has a touchscreen.

ENGADGET: Samsung Series 5 UltraTouch review: a solid, if slightly overpriced, mid-range Ultrabook

It's just - you know, this one thing.

NPR: Ron Paul Brings the Youth Vote

You know how this one works, too.

WSJ: Soccer: Chelsea Figures Out How to Say Goodbye to Frank Lampard