Afn
abbr. 平均故障数（average failure number）
🗣️ 情景例句
It's not good enough to show.
还不值得展示。
Little thieves are hanged, but great ones escape.
大贼脱身去，小贼被吊死。
Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tapwater, or untreated water from any other source.
短途旅行到水质不保险的地区时，应避免饮用水龙头的水或未经处理任何其他来源的水。