Simone
英 [buːm]美 [bum]
n.低沉有回响的声音；隆隆声。
v.发出低沉有回响的声音；发出隆隆声。
详细释义：
名词（n）.a loud, deep, resonant sound低沉有回响的声音；隆隆声
the deep boom of the bass drum.低音鼓的低沉声。
the characteristic resonant cry of the bittern麻的鸣叫声。
动词（v）make a loud, deep, resonant sound发出低沉有回响的声音；发出隆隆声
thunder boomed in the sky空中传来隆隆的雷声 ︳
with direct speech]say in a loud, deep, resonant voice用深沉的声音讲话
‘Stop right there,’ boomed the Headmaster.“站住！”校长用低沉的声音说。
(of a bittern)utter its characteristic resonant cry（麻）鸣叫。
her voice boomed out. 她说话声音低沉。
