🧩 词语组成解析
math
[mæθ]
n. 数学（等于mathematics）;
🗣️ 情景例句
What about the rings?
戒指怎么办？
It is too late to come with the water when the house is burnt down.
马后炮。
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，