Tomorrow, I will take my hammer and drive that steel faster than any machine."

VOA: special.2009.02.21

I could even make it out of steel versus aluminum.

甚至可以用刚合铝来做。

麻省理工公开课 - 固态化学导论课程节选

He told his family,"I am going to be a steel-driver some day."

VOA: special.2010.09.04

He said,"I have the best steel-driver in the country.

VOA: special.2009.02.21