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
Young drivers are more likely to be involved in an accident.
年轻驾驶员更容易出事。
If wise men play the fool, they do it with a vengeance.
智者干傻事，愚蠢到极点。
I apologize for being so angry with you.
我为跟你发火向你道歉。