Permutability
换排性, 转置性, 交换性
✅ 同义词
🗣️ 情景例句
Guess who I ran into today?
你猜我今天碰见谁啦？
We are in great need of Grade A.
我们急需一等品。
I can't get home so early, Dad!
这么早我到不了家，爸爸！