Bb
abbr. 滚珠轴承（ball bearing）；铅笔芯（double black）
🗣️ 情景例句
Oh, don't look so sad.
噢， 别显得那么无精打采。
Prompt delivery would be necessary as we have a fast turnover in this trade. We would therefore need your assurance that you could meet all delivery dates.
即期交货很重要，因为这种货流转很快。所以我们需要你方保证及时交货。
Great! Could you bring it to school tomorrow?
好极了！你明天能把它带到学校来吗？