🧩 词语组成解析
sparrow
['spæro]
n. 麻雀;〈美〉个子小的人;
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
Let's do it!
我们来录！
Let me give you a little friendly advice.
让我给你一些好意的劝告。
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，