All I've done is write down slightly boringly and nerdily, exactly what we already saw in a couple of occasions.

我写在黑板上的都是那些乏味的定义,我想你们你们忍受很久了

耶鲁公开课 - 博弈论课程节选

Well, I've done all my business in video games since, 30 years already.

唔，我做电子游戏，已经三十年了。

比利时和美国的差异 - SpeakingMax英语口语达人