✅ 同义词
🗣️ 情景例句
How...?
你怎么……？
He that would eat the kernel must crack the nut.
要把果仁吃，就得碎果壳。
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，