Nbr
abbr. 腈基丁二烯橡胶（nitrile -butadiene rubber）
🗣️ 情景例句
You will only have to pay another ten cents and a nickle for your child.
你只需另外再付10美分，而你的孩子只要再付5美分。
Whom will you have lunch with?
你将和谁吃饭？
He had been the first to turn a telescope to the sky,
他是第一个把望远镜对准天空的人，