v.(尤指由于承重或受压)中间下垂，下凹,减弱,减少
sag的过去分词和过去式

原形：sag第三人称单数：sags过去式：sagged过去分词：sagged现在分词：sagging

She's such a sag, always losing her keys.
她真是个懒散的人，总是丢三落四的。
The sofa has lost its shape, it's become quite a sag.
这沙发失去了弹性，变得凹陷了。
The stock market took a sudden sag after the news of the recession.
股市在经济衰退的消息传出后突然下跌。
After a long day at work, he sank into his saggy armchair.
在漫长的工作日之后，他疲惫地坐在那张松软的扶手椅上。
Her spirits sagged when she didn't get the promotion she expected.
当她没有得到预期的晋升时，她的精神状态低落了。
The old tire was so worn out; it had developed a noticeable sag.
那个旧轮胎磨损严重，明显凹陷了。
His shoulders sagged with exhaustion from carrying the heavy load.
他肩扛重物，显得疲惫不堪，肩膀垂了下来。
The economy is sagging, leading to high unemployment rates.
经济疲软导致失业率上升。
The elderly woman's back sagged under the weight of her groceries.
那位老妇人背上的东西太重，使她的背都弯了下去。
A sagging roof needs urgent repair to prevent further damage.
屋顶漏水严重，急需修理以防止进一步损坏。