拱背

例句：

1. 1. After years of hard work, he finally achieved his goal and felt a sense of pride in his achievements.
   经过多年的辛勤工作，他终于实现了自己的目标，并为自己的成就感到自豪。
2. 2. As the old man sat down to rest, he noticed that his back was starting to slumpforward.
   当老人坐下来休息时，他注意到自己的背部开始向前弯曲。
3. 3. The young girl's slouch made her look unattractive.
   这个年轻的女孩的驼背让她看起来不吸引人。