Kollag
固体润滑剂
🗣️ 情景例句
Thanks for asking.
谢谢你的邀请。
Would you mind closing the window for me?
能帮我关一下窗户吗？（你介意关下窗户吗？）
I'm allowed to change the colour of my hair, she said angrily.
我改变自己的发色是允许的，"她愤怒地说。