Prechlorination
预加氯
🗣️ 情景例句
You sound like something's bothering you, Susan.
听起来好像你有什么心事， Susan？
I gave her my address and she gave me hers.
我把我的地址给她，她也把她的给了我。[九六广州初中会考]
Can we go and have a drink after that?
种完这棵树后我们能去喝点水吗？