Celulase
[机] 纤维素
🗣️ 情景例句
Could you tell me a little about your background?
能否请您简短地谈一下贵公司的背景？
I'm happy when I skate.
溜冰真是快乐呀。
No, thank you. Thanks for all your help.
不必了，谢谢。谢谢你帮了我大忙。