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
Don't worry. She'll be fine.
不要担心， 她会好的
Do you have a flight to New York departing at about 10 a.m. Next Monday?
你们有下周一大约下午10点起飞到纽约的班机吗？
Speculations about is nature have been going on for literally thousands of years,
人们对睡眠作用的种种猜测，确实有数千年之久。