Nbr
abbr. 腈基丁二烯橡胶（nitrile -butadiene rubber）
🗣️ 情景例句
What did they say?
他们说什么?
I've never read a more fascinating story.
我没有读过比这更令人着迷的故事。
He should have known that the police would never allow this sort of thing.
他本该知道警察绝不会允许这类事情发生。