Desulfonation
[化] 脱磺酸基; 脱磺酸基作用
🗣️ 情景例句
Excuse me, but could I ask you a quick question?
对不起，我能问你一个简短的问题吗？
To mend a tear
补破洞
In that case, we'd like cash on receipt of invoice.
这样的话，您在收到帐单时请付现。