To do any other kind of manual labor is to act like a slave."

从事其他任何体力劳动便是自贬为奴隶"

耶鲁公开课 - 美国内战与重建课程节选

You had to be very confident because it was going to take a long time, a fantastic amount of labor, a tremendous amount of money to do that.

你不得不相信,建造一座蜂巢墓要花费很长时间,大量的劳动力,以及庞大的金钱支持

耶鲁公开课 - 古希腊历史简介课程节选

That would be a very straightforward functional way to do it, but you could imagine that that's very labor intensive because you've got to separate each individual cell, and you've got to nurture it and then keep track and study what it becomes.

这是一种非常直截了当的有效方法,但你能想象这得耗费海量的人力,因为你得分离每一个细胞,并进行培养,然后还得追踪和研究它们的变化

耶鲁公开课 - 生物医学工程探索课程节选