Bca
abbr. 波音民用飞机集团（Boeing Commercial Airplanes）；美国台球联会（Billiard Congress of America）；（新西兰）商业与管理学士（Bachelor of Commerce and Administration）；总线周期精确（Bus Cycle Accurate）
🗣️ 情景例句
Brown was friendly and easy-going.
布朗待人友善。
They are so busy these days, that they don't even have time for their friends.
他们最近忙得没法和朋友见面。
There are a lot of people in the swimming pool.
游泳池里挤满了人。