Tosate
对甲苯磺酸基团
🗣️ 情景例句
together in a more scheduled way.
能更定时在一起。
There are two sides to every question.
每个问题都有两个方面。
Excuse me for ringing you so late in the evening, but I've only just got home.
对不起，这么晚给你打电话，我刚到家。