Cbb
abbr. 电子布告栏（Bulletin Board System）
🗣️ 情景例句
This is fun. It's a piece of cake.
有意思 毫不费力。
We intend to place large regular orders, and would therefore like to know what quantity discounts you allow.
我方将定期大量订购，因此想知道你方给多少数量折扣。
Lucy and I go to school six days a week.
鲁茜和我每周上六天课。