You then go to dinner, you come back and you realize that your roommate has now vested you by five seconds and three hours later you've inched ahead again ; so it's a wonderfully motivational tool; and speaks to just how addictive frankly this stuff was and that too for me.

然后你去吃饭,回来后意识到你的室友已经快你五秒钟,三小时后你再次小幅领先,所以这是一个奇妙的激励工具;,坦率地说这东西多么的诱人,对我来说也不例外。

哈佛公开课 - 计算机科学课程节选

You know, frankly, when it comes down to it, people want to give money and get something in return.

坦率地说，归根结底一句话，人们在有所投入的时候也是期待有所回报的。

不平等的赞助入学 - SpeakingMax英语口语达人