🧩 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
How much will it cost?
需要多少钱？
I've lost my nerve.
我失去了勇气。
Will you come through to the back, please?
请跟我到后面去。……你何不试试这套呢？