Prolactin
n. 催乳激素\\n[化] 促乳素
🗣️ 情景例句
Use a dictionary and grammar guide constantly.
经常使用字典和语法指南。
There is nothing which has not been bitter before being ripe.
事情在成功前没有不艰苦的。
This case doesn't belong to me!You've given me the wrong case!
这箱子不是我的！您给错了！