Among them, "the era of green plum cooking wine has passed" means that time has passed and the era of green plum cooking wine has passed. The time for green plum to cook wine refers to the passage of time, which can also be understood as the passage of time. Although this season has passed, we can recall its beauty and cherish the present time.
"Chrysanthemum and crab are fat at the right time" means that now is a good time to taste chrysanthemums and crabs. Chrysanthemum is the representative flower in autumn, which is yellow and very beautiful at this time; Crab is also one of the delicious foods in autumn, because it is delicious and nutritious. This sentence expresses people's love and enjoyment of the beautiful time in autumn.
Generally speaking, this sentence tells us to cherish the good times of the moment and enjoy the good things in life. It is a kind of love and enjoyment for life to recall the past green plum cooking wine or to taste the present chrysanthemum crab fat.