🧩 词语组成解析
n. <南非><忌><蔑>非洲黑人
boom
[bʊm]
vi. 发出隆隆声;快速发展;暴涨;
vt. 以低沉而有回响的声音发出;使繁荣;使迅速发展;
n. 隆隆声;繁荣;激增;
🗣️ 情景例句
I waited for you for about a quarter of an hour.
我等了你差不多一刻钟。
This stain is really stubborn.
这污垢去不掉。
No, I think it's his cup.
不，我想那是他的杯子。