There's a problem with that and the problem is that countries that are less successful don't keep data--that's a problem.

但这个研究方法也有问题,在那些不太成功的国家里,数据并不充分,这是个问题

耶鲁公开课 - 金融市场课程节选

Well, because it's very successful at getting somebody to like the group.

因为这是一种很成功的,让人喜欢这个群体的方法。

耶鲁公开课 - 心理学导论课程节选

One way that that's done is by introducing genes into cancer cells, genes that aren't normally expressed in any mammalian cell, but that will cause the cancer cell to die.

已经成功应用的一种方法是,将基因导入癌细胞,而这种基因通常不在哺乳动物细胞中表达,但是可以导致癌细胞的死亡

耶鲁公开课 - 生物医学工程探索课程节选