n.

1. 树懒[C]
2. 懒散，怠惰[U]
   His sloth keeps him from taking part in sports.

   他因懒散而不参加体育运动。

3. 【古】缓慢，延误[U]

n.

1. reluctance to work or make an effort; laziness.
2. a slow-moving tropical American mammal that hangs upside down from branches using its long limbs and hooked claws. [Genera Bradypus (three-toed sloths) and Choloepus (two-toed sloths).]