Insurers could not deny coverage to people who already have a condition, or cancel coverage if people get sick.

VOA: special.2009.09.12

If the time you are interested in is not zero, you're allowed to cancel it and get the time from here.

如果你们关注的解不是零时刻,那么就可以忽略它,然后从这里解出时间

耶鲁公开课 - 基础物理课程节选

But in terms of SI units, which become much more useful if you're actually trying to use intensity in a problem and cancel out your units, we're just talking about joules per second is what intensity is.

但是用国际单位制，这个变得越来越有用了,如果你实际上在使用强度,来解决问题和约化单位，我们仅仅讨论每秒钟的焦耳,这就是强度。

麻省理工公开课 - 化学原理课程节选

It turns out that if you make them forfeit their cash value on canceling, then they won't cancel.

但是如果你规定保单的现金价值,会随保单的取消而消失,他们就不会这么干了

耶鲁公开课 - 金融市场课程节选

If the two forces don't cancel, you have a net force.

如果这两个力没有抵消,便会有一个净作用力

耶鲁公开课 - 基础物理课程节选