🧩 词语组成解析
subclass
['sʌbˌklɑ:s]
n. 亚纲，子集;子类;
天南星亚纲
🗣️ 情景例句
Maybe she'll call back. She promised.
也许她会打电话回来。她说了。
Diligence is the mother of good luck.
刻苦是成功之母。
A sound made by tapping on the hull of a ship will be reflected from the sea bottom,
敲打船体所发了的声音会从海底传回来，