Kera
abbr. keratinase 角蛋白酶
🗣️ 情景例句
Guess what I just found out.
你猜我刚知道了什么？
It is good to have friends in trouble.
在患难时得到朋友是幸运的。
You go to the school office and telephone the police. Please hurry up!
“你去学校办公室给警察打电话。请快一点！快点！”