You've got to learn to crawl before you learn to run.

在你学会跑之前你得学会爬。

麻省理工公开课 - 固态化学导论课程节选

You can go in outer space-- No, it won't move very much.

你能到外太空去,是的,它不能跑得太远

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No, and speed is what you want.

不行,可你想要跑得越快越好

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Can you make much speed that way?

你能跑得快吗

耶鲁公开课 - 古希腊历史简介课程节选