颓

例句：

1. 3.
   指人
2. 1. The team's performance was a complete setback to their hopes.
   团队的表现完全辜负了他们的希望。
3. 2. His health had deteriorated significantly since he retired.
   自从他退休以来，他的健康状况显著恶化。
4. 3. The old man looked quite unkempt, with a few grey hairs and a saggingposture.
   老人看起来相当邋遢，有几缕白发和一副萎靡不振的姿态。