Cbb
abbr. 电子布告栏（Bulletin Board System）
🗣️ 情景例句
Leave nothing to chance.
做任何事情都要有把握。
How did you decide that product was safe?
你怎样决定产品是安全的呢？
Looking round, I realized with a shock that I was the only passenger left on the bus.
我环视了一下身旁，惊奇地发现车里就只剩我一个乘客了。