VERB
(植物)落叶;(动物)蜕皮
When a plant sloughs its leaves, or an animal such as a snake sloughs its skin, the leaves or skin come off naturally.
例句
All reptiles have to slough their skin to grow...
所有爬行动物生长过程中都要蜕皮。
The lemon geranium sloughs dry brown leaves at the base of its branches.
柠檬天竺葵枝条底部棕色的枯叶会脱落。