One refers to women, and the other is the sleeves of a skirt.
The skirt also refers to women. Liu Xuan of the Yuan Dynasty used a pomegranate to point at the woman's skirt in the dark night: the shadow of the weeping poplar is still in the shadow, very hurried, only the pomegranate flowers are not complaining about the east wind, the dusk rain is urgent, the dawn glow is wet, the green is exquisite, and it is more like a cyan skirt. The first dyeing is generally the same. The skirt means the hem of the skirt.袂: refers to the sleeves.
Floating sleeves: When dancing gracefully, the sleeves flutter in the wind, giving the appearance of being out of the dust. It means that the skirt looks particularly beautiful when it flutters while dancing.