🧩 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
What did you learn at school today?
你今天在学校学了什么？
I told him to stay till he calls.
我告诉他留下来等他打电话来。
Yes, that's right.
对的。