生米做成熟飯

1. • lit. the raw rice is now cooked (idiom) fig. it is done and can't be changed
2. • It's too late to change anything now.

Character by character

• 生(shēng)grow
• 米(mǐ)surname Mi
• 做(zuò)make
• 成(chéng)surname Cheng
• 熟(shú)ripe
• 飯(fàn)cooked rice