fire-drill (n.)youdaoicibaDictYouDict[fire-drill 词源字典]
1865, originally a device for making fire by the twirled stick method, from fire (n.) + drill (n.1). Meaning "rehearsal of what to do in a fire" is from 1884 (originally it also involved fighting the fire), from drill (n.) in the "agreed-upon procedure" sense (see drill (v.)).[fire-drill etymology, fire-drill origin, 英语词源]