Nbr
abbr. 腈基丁二烯橡胶（nitrile -butadiene rubber）
🗣️ 情景例句
I enjoy camping.
我喜欢露营。
Which one do you want to buy?
你买哪一个？
Our climate is not very good,but it's certainly interesting.
虽然我们国家的气候并不很好，但又确实很有意思。