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
Do you remember when Daddy and I used to take you
你还记得爸爸和我常带你
When you visit an American home.
在你访问一户美国人家时
People have been talking of it a lot recently.
近来人们对这事谈得很多。