Superchlorination
过氯化作用
🗣️ 情景例句
It's our anniversary; let's go somewhere special to celebrate.
今天是我们的结婚纪念日， 我们去一个特别的地方庆祝吧。
To carry dirt
清理垃圾
That'll be very intersting. What cities are you going to visit?
那一定很有趣。你们打算参观哪些城市？