Nbr
abbr. 腈基丁二烯橡胶（nitrile -butadiene rubber）
🗣️ 情景例句
but I don't want to put it off too long.
但我希望不要拖得太久。
If there were no clouds, we should not enjoy the sun.
吃得苦中苦，方知甜中甜。
The reason lies in its gravity.
其原因在于月球的重力。