名詞 cud:

1. food of a ruminant regurgitated to be chewed again
   同義詞：rechewed food
2. a wad of something chewable as tobacco
   同義詞：chew, chaw, quid, plug, wad

1. I chewed the cud for a couple of days before deciding to refuse your offer.
   我反復(fù)思考了二三天后才決定拒絕你的提議。

cud

n.（名詞）
Food regurgitated from the first stomach to the mouth of a ruminant and chewed again.
反芻的食物：由反芻動物的第一胃逆入口腔并再次進(jìn)行咀嚼的食物
Something held in the mouth and chewed, such as a quid of tobacco.
咀嚼物，口嚼煙塊：放在口中進(jìn)行咀嚼的東西，如煙草塊

來源：
Middle English
中古英語
from Old English cudu
源自 古英語 cudu