Pfa
abbr. 故障预警分析（Predictive Failure Analysis）；职业球员联盟（Professional Footballers' Association）；全氟烷氧基烷烃
🗣️ 情景例句
I do.
我愿意。
I'm thinking of going to my grandma's.
我想去外婆家。
He suggested that a double railway-tunnel should be built.
他提议建一条双轨隧道，这样就解决了通风问题。