寒来暑往

Explanation: Summer is over and winter is coming. Refers to the passage of time. 　　Usage: Joint type; as predicate, adverbial; metaphor of time change 　　Source: "Under copulative Book": "cold to the heat, the heat to the cold, the summers pushing phase, while the old into the Yan." 　　Examples: This rabbit is walking his black fly, ~, spring flowers, but is too early autumn Winalite. (Yuan Wuhan Chen "Health of the Golden Pavilion" second off) Thesaurus:  fleet as a white pony's shadow flashing past a crevice, the sun and the moon move back and forth like a shuttle-time flies, Douzhuanxingyi, Time Like Ran, Property transfer aberration, Cold and warm Easy Day, Juguangguoxi, Juchuangdianshi, days went and month came, daily The following month go, from year to year, Things Past fleeting time, time flies, change of the seasons, passage of time, Douzhuancenheng, Hanwangshulai