Pfi
abbr. power factor indicator 功率因数指示器
🗣️ 情景例句
Harry, you didn't turn it down because of me …
Harry你拒绝它该不是因为我……
If you lose your way, ask a policeman.
如果你迷路了，可以向警察打听。
That's fantastic!
那真是棒极了！