Wofatit
离子交换树脂
🗣️ 情景例句
He did not win, but at least he made the effort.
他虽然没有获胜，但至少已经尽了努力。
I'm going to be sixty-one next Tuesday.
下星期二我将60岁了。
Excuse me, Mr Green. I can't find the twins.
对不起，格林先生，我找不到那对双胞胎了。