- 一发不可收拾 yīfābùkěshōushi to get out of handDescribes a situation that, once started, becomes impossible to stop or manage
- 统一发票 tǒngyīfāpiào uniform invoiceA standardized government-issued receipt used primarily in Taiwan for financial transactions and tax compliance; it also serves as a ticket for a national lottery. Often referred to simply as [[发票|發票|fa1 piao4]].
- 一发而不可收 yīfā'érbùkěshōu impossible to stop once startedTo be impossible to halt or control something once it has begun.