Although, I said, insurance was effectively discovered or invented in the 1600s, it has been slow to grow because they didn't have the well-defined-- all of the inventions yet.

尽管我说过，保险实际上,是在17世纪的时候被发现或者发明的，但它的发展非常缓慢,因为人们无法确切定义-,这种被发明出的东西。

耶鲁公开课 - 金融市场课程节选

If you measured, if somebody measured levels of insulin in your blood after lunch, if they took it 10 minutes, 30 minutes, an hour, you would see that it's going slowly up.

如果这时候检测,如果有人测量午饭后十分钟,三十分钟,及一个小时血液中的胰岛素水平,就会发现它在缓慢地升高

耶鲁公开课 - 生物医学工程探索课程节选