chew your cud
US /tʃuː jʊər kʌd/
UK /tʃuː jʊər kʌd/

1.
仔细思考, 深思熟虑
to think slowly and carefully about something
:
•
He needed some time to chew his cud before making a decision.
他需要一些时间来仔细思考,然后才能做出决定。
•
Let me chew my cud on that idea for a while.
让我仔细考虑一下那个想法。