n.下垂；松垂；凹凸；缺陷
动词sag的现在分词.
Irreversible sagging and chronic backache can be the long-term result. 长此以往，可能会导致无法挽回的下垂和慢性背痛。
Skin is lifted and tightened to help visibly diminish sagging and drooping. 提升并紧致眼部肌肤，有效缓解松弛和下垂问题。
Your skirt is sagging at the back. 你的裙子后面松垂下来了。
