Jennings says talking on the phone and reaching for a cell phone "is akin to having four beers and driving."

VOA: standard.2010.06.24

This suitcase had--instead of having four little wheels on the bottom, it had two wheels on the back.

这种旅行箱不是四个轮子都在底部，而是在后面有两个轮子。

耶鲁公开课 - 金融市场课程节选

So in addition to having these two carbon bonds, we actually also have four carbon hydrogen bonds in addition to our carbon-carbon bonds.

在这碳碳之间的键以外，我们还有四个碳氢键,除了我们的碳碳键外。

麻省理工公开课 - 化学原理课程节选

So he curses existence, curses God at having made him so impotent that he can't change the fact that two plus two equals four.

所以他诅咒生存，诅咒上帝让他如此无能,无能到无法改变二加二等于四的事实。

耶鲁公开课 - 死亡课程节选