These things run for variable amounts of time because they take input, a list of size of some amount.

而这一段的执行时间是可变的,因为它们需要输入一个包含一些元素的列表。

哈佛公开课 - 计算机科学课程节选

It probably has some risk, but the way we approximate things in finance, we take the government as riskless.

它可能存在一定的风险，但在金融学上，我们忽略其风险，将政府债券看作无风险。

耶鲁公开课 - 金融市场课程节选

Some things that actually wind up being really important take more than 10 years to get popular.

某些事需要10年，甚至更长时间,才会真正显现出重要性来。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选