Ppa
abbr. 苯丙醇胺（phenyl-propanolamine）；并行处理自动机（Parallel Processing Automata）；实验性反应堆（Preliminary Pile Assembly）
🗣️ 情景例句
but to help with the paint job.
还要帮忙粉刷。
A good name keeps its luster in the dark.
良好的名声在黑暗中也能闪闪发光。
In a short time I was busy mixing butter and flour and my hands were soon covered with sticky pastry.
不一会儿我就忙着调拌起了黄油和面粉，很快我的手上就沾满了粘粘的面糊。