Fei
abbr. 发射误差指示器（Firing Error Indicator）
🗣️ 情景例句
May I pay in cash?
可以付现金吗？
He that knows not how to hold his tongue knows not how to talk.
不知缄口的不善言。
a ticklish business which is achieved with the aid of two tame elephants roped to the captive on either side.
这是一件棘手的事，需要在它两侧拴上两头驯服的大象才能完成。