Keratinous
角朊的, 角质的, 角(质)蛋白的
🗣️ 情景例句
Workers have to work very hard to keep bread on the table.
工人得十分努力工作才能赚钱糊口。
She is free any time you need help.
你需要帮忙时，请随时向她求助好了。
I want a dress like that one, but it must be my size.
我想一件和那件一样的，但必须是我的尺寸。