Permutoid
[化]交换体
🗣️ 情景例句
Five hundred dollars, please. And could you give me ten dollar in small change?
请换500美元。再另外能否给我10元的小面额零钱？
It's up in the air.
尚未决定。
These shoes are in fashion now.
现在流行的是这种鞋子。