for ages of ages; for all time; forever; for ever and ever; for good (and all); forevermore; from age to age; throughout the ages; till all is blue; to the crack of doom; to the end of time
❍ 他们发誓，～，永远相爱。They vowed that they would love each other till all is blue.
地老天荒dì lǎo tiān huānɡ
比喻时代的久远。forever, the age of earth and the extent of heaven, for ages of ages, from age to age, to the end of time, for all time