sink or curve down in the middle under weight or pressure
hang loosely or unevenly
extent to which sth sags;sagging
"there was a sag in the chair seat"
"The children sagged their bottoms down even more comfortably"
The skin of his face..sagged and hung in pouches.
出自： G. Greene
The trees are heavy with apples.., sagging with them.
出自： R. Frame
He sagged in Don's arms and went limp.
出自： G. Keillor
His jeans..sagged off his buttocks.
出自： P. Farmer