生米煮成熟飯〔-----饭〕 saang¹ mai⁵ zyu² sing⁴ suk⁶ faan⁶ {shēng mǐ zhǔ chéng shú fàn}

1. the rice is cooked
2. what's done is done
3. it's too late to change anything now (idiom)