Nbr
abbr. 腈基丁二烯橡胶（nitrile -butadiene rubber）
🗣️ 情景例句
Remind me to leave at twelve forty-five.
提醒我十二点四十五分走。
The feature started at 9 o'clock and ended at 11:30.
放映在9点钟开始了并且将在11:30结束了。
They help their parents to open their stockings, too.
他们还帮助父母打开他们的袜子。