Bbm
abbr. 工商管理学士（Bachelor of Business Management）；先开后合（Break-Before-Make）
🗣️ 情景例句
I want to leave the phone number of the restaurant....
我要留餐厅的电话号码给她。
I believe so.
我相信是这样。
The tunnel would be well-ventilated if tall chimneys were built above sea level.
隧道就具备了良好的通风条件。