You've got to pretty much take that chalk, and make a slurry out of it, put water, and dry it back up, put in a mold, and then you can have the chalk again, but you can't just glue it back together.

你得尽可能地收集它的碎片，把它做成粉浆，加水然后风干，放进模具，然后你就能重新得到这支粉笔，但是你不能简单地把它粘起来。

麻省理工公开课 - 热力学与动力学课程节选

until there were flies crawling on it and bugs and mold.

直到那上面爬满了苍蝇和虫子，长满了霉菌。

布鲁克林的房价 - SpeakingMax英语口语达人

He says,"provincials are like mold, burrowing in their little plots, or frogs at the bottom of their puddles, engaged in sordid, trivial rivalries, moved by petty jealousies, avarice and material interests.

他说,乡下人就像模子里刻出来的,在他们的自留地里乱挖一气,或者在泥浆里面挖青蛙,从事着肮脏,没什么竞争性的工作,为嫉妒,贪婪和物欲所驱动

耶鲁公开课 - 1871年后的法国课程节选