Nbr
abbr. 腈基丁二烯橡胶（nitrile -butadiene rubber）
🗣️ 情景例句
In my opinion, winter in Beijing is not very cold.
我觉得北京的冬天不是特别冷。
To blow smoke rings
喷出烟圈
Nor is it only the ignorant and ill-educated person who has such faith in the bottle of medicine.
并不只是那些无知和没受过良好教育的人才迷信药瓶子。