/sæg; sæˇ/
v (-gg-) [I]
1 sink or curve down in the middle under weight or pressure （因负重或受压）向下凹或中间下陷
*a sagging roof 下陷的屋顶
* The tent began to sag as the canvas became wet. 帐篷因帆布湿了中间有些下坠.
2 hang loosely or unevenly 松弛或不整齐地悬着
*old torn curtains sagging at one end 垂在一端的破旧窗帘
* Your skin starts to sag as you get older. 人一老皮肤就松弛了.

n [U, sing] extent to which sth sags; sagging 下陷或松弛的程度; 下陷或松弛
*too much sag in the mattress 床垫过于松弛
* a sag in the seat of the chair 椅子座位部分的凹陷.

v past tense and past participlesaggedpresent participlesagging [I]

[Date: 1300-1400; Origin: Probably from a Scandinavian language]
to hang down or bend in the middle, especially because of the weight of something
= droop
　The branch sagged under the weight of the apples.
　The skin around my eyes is starting to sag.
　a sagging roof
to become weaker or less valuable
　attempts to revive the sagging economy
>sagn [U and C]
　a sag in the mattress