Pcas
(pca 的复数) abbr. 污染控制局（Pollution Control Agency）；极地冷空气堆吸收, 极冠吸收（Polar Cap Absorption）；波特兰水泥协会（Portland Cement Association）
🗣️ 情景例句
This is show business.
而今天这个却是演艺事业。
Yes, I got dressed and had breakfast.
是,我穿好衣服了并且吃了早餐。
It will be about the same as it was last time.
大概和上回的订量一样。