Unpollute
未污染
🗣️ 情景例句
I have to leave. I feel terrible, but...
我得走了。真是糟糕透了， 但……
We were pleased to hear from your letter of 6 August that you were impressed with our selection of toys.
我们很高兴收到你方8月6日来函得知你方对我们的玩具非常感兴趣。
Of course. Good luck. Have a good trip.
一定。祝你好运。旅途愉快！