"I usually get together with a daughter and a granddaughter and we go out to dinner and exchange gifts.

VOA: special.2010.02.08

It doesn't go all the way to absolutely 100 percent ammoniazero hydrogen zero nitrogen if they were mixed together with the right ratios.

即使按适当比例混合,也不会出现全部氨气,没有氢气和氮气的情况。

麻省理工公开课 - 热力学与动力学课程节选

What holds us together so that when I leave the room most of my cells go with me?

是什么让我们身体的细胞凝聚在一起,让我的绝大部分细胞能与我一同走出教室

耶鲁公开课 - 生物医学工程探索课程节选