pos·sum
noun/ˈpɒsəm/
/ˈpɑːsəm/
(Australian English, New Zealand English or North American English, informal) (also opossum British and North American English)
Idioms - a small American or Australian animal that lives in trees and carries its young in a pouch (= a pocket of skin on the front of the mother’s body)
负鼠（产于美洲或澳大利亚的小动物，在树上生活，携幼崽于母兽育儿袋中） Word Originearly 17th cent.: shortening of opossum.
Idioms
play possum
- (informal) to pretend to be asleep or not aware of something, in order to trick somebody
装睡；装蒜；装傻；装糊涂