Prechlorination
预加氯
🗣️ 情景例句
Hey, do you work out?
嘿，你锻炼吗？
He puts me to shame.
他使我蒙羞。
Well, have you considered using the lab in your free class? I suggest you ask Mr. Wu.
噢，你是否考虑过在自习课上利用这个实验室？我建议你问问吴先生。