Calcon
[化] 钙试剂; 茜素蓝黑
🗣️ 情景例句
I'll try to explain.
我会尽量给你解释。
There have been a lot of changes here in the last 20 years.
在这20年里这里有很多变化。
The line's busy. I'll try again later.
电话占线，过一会我再打。