Pca
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
I'm always in a bad mood on Mondays.
我每个星期一情绪都很低落。
But today well lived makes every yesterday a dream of happiness, and every tomorrow a vision of hope.
只有今天好好地生活，昨天才会变成幸福的回忆，明天才会成为希望的憧憬。
He gets a good salary, but he always borrows money from his friends and never pays it back.
他的薪水很高，但他却总是向朋友借钱，并且从来不还。