Keratein
[化] 还原角蛋白
🗣️ 情景例句
Something simple--but a good one.
要简单的，但要精美 。
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
The situation is serious. Something must be done before it's too late.
形势危急。得及时采取措施。