Officials say they have already recovered the flight's voice recorder, which may give information on the cause of the crash.

VOA: standard.2010.05.12

Basically, you're introducing this gene into cells that when you give the right inactive drug that will cause the cell to make chemicals that kill it.

概括来说,当你把这个自杀基因导入,含有特定未激活药物的细胞时,二者作用就使细胞生成了,可以杀死自己的化合物

耶鲁公开课 - 生物医学工程探索课程节选

And later on if you right before or right during you give the dog some food you--you ping a bell the bell will cause the saliva to come forth.

,在喂食前或者喂食过程中,你摇铃,铃声就会加速唾液的分泌。

耶鲁公开课 - 心理学导论课程节选