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
Could I bum some money off of you?
我能先从你那借点钱吗？
Each item is to be wrapped separately in gerase-paper.
每件货物应单独用油纸包好。
Sure. We were in the same class.
当然认识。我们同班呢。