Nbr
abbr. 腈基丁二烯橡胶（nitrile -butadiene rubber）
🗣️ 情景例句
Is that a proposal, or are we just playing a game?
这是求婚呢 ，还是仅仅在玩游戏？
They consented with one voice.
他们异口同声地表示同意。
Sure enough, a policeman arrived on the scene and politely asked the workmen to go away.
果然，警察来了，不礼貌地请工人离开此地；