B-b
abbr. 滚珠轴承（ball bearing）；铅笔芯（double black）
🗣️ 情景例句
The cradle will fall,
摇篮会掉落
It is an evil sign too see a fox lick a lamb.
狐狸舔羔羊，这是凶迹象。
The old view of Galileo was delightfully uncomplicated.
令人高兴的是，过去对伽利略的看法并不复杂。