let in on

US /let ɪn ɑːn/
UK /let ɪn ɑːn/
"let in on" picture
1.

讓...知道, 透露給

to allow someone to share a secret or to know something that is not known by many people

:
•
They finally let me in on their plans for the surprise party.
他們終於讓我知道了他們驚喜派對的計畫。
•
She refused to let him in on the secret.
她拒絕讓他知道這個秘密。
:
informdiscloserevealappriseenlighten
:
letlet inlet onlet'slet downlet uplet off