柯林斯词典sag /sæɡ/ (sagging,sagged,sags) 1. V-I When something sags, it hangs down loosely or sinks downward in the middle. (中间部分) 下垂; 下陷 The shirt's cuffs won't sag and lose their shape after washing. 这件衬衫的袖口洗后不会松垂变形。 返回 sag剑桥词典to drop down to a lower level in the middle （中部）下垂，下陷 The shelf sagged under the weight of the heavy books . 搁板被沉重的书压弯了。 a sagging roof /floor /bed 下陷的屋顶／地板／床 to become weaker 减弱；下降，下跌 The dollar held up well this morning but the pound sagged. 今天上午美元坚挺，但英镑下跌了。 返回 sag