you never know
US /juː ˈnev.ər noʊ/
UK /juː ˈnev.ər noʊ/

1.
아무도 몰라, 어떻게 될지 몰라
used to say that something unexpected might happen, so you should not give up hope or assume something will not happen
:
•
It might rain later, you never know.
나중에 비가 올 수도 있어, 아무도 몰라.
•
He might still show up, you never know.
그는 아직 나타날 수도 있어, 아무도 몰라.