B-b
abbr. 滚珠轴承（ball bearing）；铅笔芯（double black）
🗣️ 情景例句
Is it possible that we forgot to buy cinnamon?
是不是我们忘了买肉桂？
Bye!
再见啦！
Jim is asking Uncle Wang some questions.
吉姆在问王叔叔一些问题。