当我第一次拥有自己的手机的时候，我觉得给所有有手机的朋友发短信是一件很酷的事情，而且我的拇指十分灵活。

When I first got my cell phone, I thought it was so cool to text message all my friends who have one, and I was pretty fast with my thumb then.

youdao

切的是我的拇指，而不是洋葱。

My thumb instead of an onion.

youdao

我的拇指强有力，我的小手指也是。

My thumb is stronger, and so is my pinky.

youdao

People differ to the extent it will hurt them to watch me slam my thumb with a hammer.

不同的人看到我用锤子打拇指,会感受到不同程度的痛苦。

耶鲁公开课 - 心理学导论课程节选

There are nine keys for my left thumb alone so I'm kind of switching between these on the back here and many others, and because of that I can go very high and I'll just demonstrate that.

我的左手拇指就要控制九个音键,通过按动后部,和其他地方的音键,我就能吹出很高的音,我现在就来演示

耶鲁公开课 - 聆听音乐课程节选