What does it mean to appear in Ye Qiu 30 days after the first frost?

Thirty days have passed since the first frost, and it can be seen from the state of vegetation that there are only a few days left in autumn.

First frost' is the name of the lunar solar terms; Ten days' is a way to indicate the date, and ten days is ten days; "You" refers to the time when you planted a grass "You are a pod" in ancient times. You can infer the date by looking at the state of "You are a pod". The word' Yu', like' Yu', means surplus and surplus.

This poem is from Tang Yuanzhen's Ode to September (Autumn Poetry): After the first first frost's 30th birthday, he left a Ye Qiu.

Thirty days have passed since the first frost, and it can be seen from the state of vegetation that there are only a few days left in autumn.

Extended data

The first Frost poem:

Autumn in Jingmen by Li Bai in Tang Dynasty

In autumn, first frost was in Jingmen, and the leaves were scattered all over the place. Because of the mountains and the wide river, the autumn wind also sent me away, which made my journey safe.

This time I went out, not to eat delicious food, but to visit famous mountains and rivers, so the place I want to go is in the mountains.

Translation:

Autumn frost falls on the leaves of Jingmen River, and cloth sails are hung on poles intact to attract autumn wind.

I didn't go out for bass and silver carp this time. I like famous mountains, so I went fishing.