Bb
abbr. 滚珠轴承（ball bearing）；铅笔芯（double black）
🗣️ 情景例句
Everyone is goofing around.
人人都在混时间。
Disease of the soul are more dangerous than those of the body.
心灵上的疾病比肉体上的疾病更危险。
Have you seen this article in the paper?
你在报上看到过这篇文章吗？