Crystogen
[机] 胱氨酸
🗣️ 情景例句
Do you follow me?
听懂我的意思没有？
It is easier to raise the devil than to lay him.
养虎易，驯虎难。
A man was lying in the box on top of a pile of woolen goods.
箱内有一个人正躺在一堆毛织品之上。