单词 boomb 释义 ▪ I. boom, n.1|bum|Also 6–7 bomb(e.[f. boom v.1]1. A loud, deep sound with much resonance or humming effect, as of a distant cannon, a large bell, etc.: also the usual word for the cry of the bittern.a1500Frere & Boye 176 in Ritson A.P....