🧩 词语组成解析
a. 有鳍状肢的
🗣️ 情景例句
You've been a great help.
你帮了大忙。
She had a headache, because of the weather here.
由于这里的天气原因她感到有些头疼。
How's the order coming along?
我们订的货怎样呢？