Keratoprotein
[医] 角质蛋白
🗣️ 情景例句
Do you?
你会吗？
It's a poor mouse that has only on hole.
鼠只有一洞，必先把命送。
When we talk about the universe, we mean the earth, the sun, the moon and the stars, and the space between them.
人们谈论宇宙时，是指地球、太阳、月亮、星星以及它们存在的空间。