Scientific American magazine says huge lasers turn only about twenty to thirty percent of the energy they use into a laser beam.

VOA: special.2010.09.01

And only after a while will we turn to the second and third question: Does it survive and, more particularly, is it immortal?

接下来不久,我们将会转而讨论第二个和第三个问题,它能幸免一死,或者,更严格地说,它是不朽的吗

耶鲁公开课 - 死亡课程节选

This was not only true of his experience at home, but of his failed efforts to turn Dionysius' kingship in Sicily into a successful example of philosophical rule.

这不仅验证于他的国内经历，也验证于他无力,助迪欧尼修斯将西西里王权,转为成功之哲学统治的过往。

耶鲁公开课 - 政治哲学导论课程节选

Again and again and again he quotes Levi-Strauss in confirmation of his own arguments, only then in a way to turn on him by pointing out that there is something even in what he's saying there that he hasn't quite thought through.

他一遍又一遍地引用列维，斯特劳斯的观点,来支持自己论点，在批驳其论点时也只是指出,他在某点上,考虑不够全面。

耶鲁公开课 - 文学理论导论课程节选