Donalgin
三氟甲基苯基胺基吡啶甲酸
🗣️ 情景例句
I am unfamiliar with law.
我对法律不熟悉。
What's your first name?
你的名字叫什么？
Experiments have proved that children can be instructed in swimming at a very early age.
实验证明，儿童在很小的时候就可以开始学习游泳。