(of a ruminant animal) further chew partly digested food（動物）反芻think or talk reflectively深思；反復討論
柯林斯高階英漢雙解學習詞典釋義
PHRASE
(牛或羊)咀嚼反芻的食物，倒嚼
When animals such as cows or sheep chew the cud, they slowly chew their partly digested food over and over again in their mouth before finally swallowing it.
英英詞典釋義
Noun
1. food of a ruminant regurgitated to be chewed again