keep (all) your wits about you

US /kiːp ɔl jʊər wɪts əˈbaʊt ju/
UK /kiːp ɔl jʊər wɪts əˈbaʊt ju/
"keep (all) your wits about you" picture
1.

保持警覺, 頭腦清醒

to stay alert and be able to think quickly in a difficult or dangerous situation

:
You need to keep all your wits about you when driving in heavy traffic.
在交通繁忙時開車,你需要保持警覺
It's a dangerous situation, so keep your wits about you.
情況很危險,所以保持警惕