Fei
abbr. 发射误差指示器（Firing Error Indicator）
🗣️ 情景例句
He is on another line right now.
他正在接另一个电话。
How do you spend your leisure time?
你怎样打发业余时间？
So how did you get into the castle?
那么，你是怎么混入城堡的呢？