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。
Sags in the coating. Can occur when objects are pre-heated.
涂层的流挂，尤其容易出现在预热的工件上。
That gives central bankers some room to cut if the world economy sags.
如果世界经济衰退的话，他们将有减少这个利率的空间。
Defects from runs and sags shall be corrected by sanding to remove the defect.
有下陷或小点等瑕疵的地方应通过砂纸打磨去除瑕疵的方法来修补。
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