to let in
[phrase form: let]
01
让...进入, 放行
to let something or someone enter a place
Transitive: to let in sb/sth
例子
Please let in some fresh air, the room is stuffy.
请让一些新鲜空气进来，房间很闷。
02
让...进入, 允许...通过
to permit the passage of water, air, or light through a hole or opening in something
Transitive: to let in water, air, or light
例子
The leaky roof let in the rain, causing water damage to the ceiling and walls.
漏水的屋顶让雨水进入，导致天花板和墙壁受到水损。
