Tosate
对甲苯磺酸基团
🗣️ 情景例句
how you see the building being used.
你们计划如何使用这栋建筑。
Maybe mine is the bigger.
我的或许更大些。
No, not any more. It used to be free but now you have to pay to get in.
不，不再免费了。过去是免费，可现在得付钱才能进去呢。