in your right mind
US /ɪn jʊər raɪt maɪnd/
UK /ɪn jʊər raɪt maɪnd/

1.
頭腦清醒, 理智的
sane and thinking clearly; having good judgment
:
•
No one in their right mind would agree to such a risky plan.
沒有頭腦清醒的人會同意這樣一個冒險的計劃。
•
Are you in your right mind to suggest such a thing?
你頭腦清醒嗎,竟然建議這種事?