In the case of life insurance, they developed actuarial tables that require a collecting of statistics.

就人寿保险来说，还需要开发出精准的表格,这需要收集很多统计数据。

耶鲁公开课 - 金融市场课程节选

But if you're going to have a big old fort, and you're going to have lots of cannon that you hope to use against your craven, reptile enemies that would want to get in your way, you've got to have people to try out the cannon.

如果你想攻占一个大型的旧式堡垒,你必须要有很多大炮,来对付那些缩在城堡中的敌人,还需要很多士兵来操纵这些大炮

耶鲁公开课 - 欧洲文明课程节选