sloth
/sləʊθ/noun
1
- mass noun reluctance to work or make an effort; laziness不愿工作（或努力）; 懒惰：
he should overcome his natural sloth and complacency.
他应当克服自己天性中的懒散和自满。
2
- a slow-moving tropical American mammal that hangs upside down from the branches of trees using its long limbs and hooked claws树懒。
2.1
- Families Bradypodidae (three species of three-toed sloth in genus Bradypus) and Megalonychidae (two species of two-toed sloth in genus Choloepus), order Xenarthra (or Edentata).树懒科（三趾树懒属下有3种）和安德列斯贫齿兽科（二趾树懒属下有2种）, 贫齿目。
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