Didn't I know anything about turn about to right, but now I think I know enough to amuse them and to entertain them.

我从前从不知道这些东西，但现在我已经学的足够多,足够引起他们的兴趣了。

麻省理工公开课 - 媒体、教育、市场课程节选

I know it's only been a few hours but my stomach is growling.

我知道才过了几个小时，但我的胃已经饿得咕咕叫了。

so that 实战 - SpeakingMax英语口语达人

And again, I've written for you, but you can figure out what the electron configuration is just by writing up in this order here.

同样，我已经写出来了，但你们可以把这个写出来,就知道电子轨道构型是什么。

麻省理工公开课 - 化学原理课程节选