let in
US /lɛt ɪn/
UK /lɛt ɪn/

1.
讓...進來, 允許進入
to allow someone or something to enter a place
:
•
Could you please let the cat in?
你能把貓放進來嗎?
•
The bouncer wouldn't let him in because he was underage.
因為他未成年,保全不讓他進去。
讓...進來, 允許進入
to allow someone or something to enter a place