一jat1發faat3

English

1. (Japanese mahjong) to complete one's hand within a single turn after declaring riichi (orthographic borrowing from Japanese 一発 "ippatsu")
2. classifier for bullets

Examples

• 萬一發生火災，按鈴。

  In case of fire, ring the bell.

  Tatoeba · Martha CC BY

• 萬一發生火災，按下按鈕。

  In case of fire, push the button.

  Tatoeba · Martha CC BY

• 万一发生火灾，打碎玻璃并按下红色按钮。

  In case of fire, break the glass and push the red button.

  Tatoeba · fucongcong CC BY