柯林斯词典

1. ADJ Something that is worn out is so old, damaged, or thin from use that it cannot be used anymore. 破旧不堪的; 报废的
Car buyers tend to replace worn-out tyres with the same brand. 汽车的买主们倾向于用同一品牌的轮胎更换废旧轮胎。
2. ADJ Someone who is worn out is extremely tired after hard work or a difficult or unpleasant experience. 疲惫不堪的
Before the race, he is fine. But afterwards he is worn out. 比赛前，他状态良好。但在赛后，他就疲惫不堪了。