Celulase
[机] 纤维素
🗣️ 情景例句
He treats everyone with courtesy.
他对待每一个人都很有礼貌。
Kennedy Airport, please. I have to be there by 7:00.
请到肯尼迪机场。我得在七点前赶到那儿。
OK. I'll bring it to school in the morning.
没问题。明早我带到学校。