What does Du Fu's poem "Cardamom Buds in Early February" mean?

This is not a poem by Du Fu, but a line from Du Mu's "Farewell". The original poem is as follows:

13 years of good posture is light, living like a scepter in bud in early February.

In Yangzhou, the spring breeze blows all over Sanli Long Street. With beaded curtains, no one can match her beauty.

The meaning of this poem is:

Good posture, light manners, only thirteen years old, just like beancurd flowers in bud in early February.

I can't compare with the little beauty in Shili Long Street in Yangzhou City who rolled up the bead curtain to sell makeup.

Du Mu's poem "Farewell" describes the beauty of a young girl. She is a singer and a poet's lover, and he has deep feelings for her. When she left, she could not bear to part with him, and his affection was endless. One is a romantic genius, and the other is a stunning beauty. When they meet in the field of happiness, they must spark. There may have been a lot of contact, love and even acquaintance.

Life is like a root, floating like dust. After a short meeting, farewell is just around the corner. A thousand words of praise shed tears. He was silent, she was silent, just silently relative.