✅ 同义词
🗣️ 情景例句
You really must have your wits about your when dealing with such people.
跟这类人打交道，你必须格外警觉。
Necessity is the mother of invention.
穷则变，变则通。
Yes, said Miss Yang.they're on that shelf over there.
“有，”杨小姐说，“就在那边的那个书架上。”