Calcon
[化] 钙试剂; 茜素蓝黑
🗣️ 情景例句
If I have time, I enjoy camping in the wild with my friends.
若时间许可，我爱和朋友到野外露营。
It is the first step that costs.
万事开头难。
It's nine forty.
九点四十了。