rattail file的意思|示意

美 / ˈrætteil fail / 英 / ˈrætˌtel faɪl /

圆锉

The guy, I say, is probably at home every night with a little rattail file, filing a cross into the tip of every one of his rounds.

那家伙，我说，很可能每天晚上在家用鼠尾锉把身边的每一颗弹头上都刻上十字。