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
How many stops will the train make on the way?
路上火车停几站？
They say the new film is an adventure story.
他们说这新电影是一个冒险故事。
The guy next to me Wrote his name at the top of the paper.
坐在我旁边的那个人只在试卷顶端写自己的名字。