Dealers are required to make the trade-ins unusable by destroying the engine, then recycle the old vehicles into scrap metal.

VOA: special.2009.08.07

What comes out is inedible, unusable until you finally-- what's the word that I want?

接出来的东西根本吃不了也说不定,直到你最后,要一个什么样的词呢

耶鲁公开课 - 古希腊历史简介课程节选