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 wish I had one now.
我真希望现在就来一个。
Do you know when he will be back?
你知道他什么时候会回来？
Beyond two or three days, the world's best weather forecasts are speculative,
世界上最好的两三天以上的天气预报具有很强的猜测性，