have your head screwed on (the right way)
US /hæv jʊər hɛd skruːd ɑn (ðə raɪt weɪ)/
UK /hæv jʊər hɛd skruːd ɑn (ðə raɪt weɪ)/

1.
头脑清醒, 有判断力
to be sensible and to have good judgment
:
•
She really has her head screwed on the right way; she always makes smart decisions.
她真的头脑清醒;她总是做出明智的决定。
•
You need to have your head screwed on if you want to succeed in this business.
如果你想在这个行业取得成功,你需要头脑清醒。