楼下的

I could hear gales of laughter coming from downstairs.

我能听到来自阵阵笑声。

She leaned over the balustrade and shouted to the man downstairs.

她俯身在阳台栏杆上对们喊着。

He lives in a downstairs room.

他住在一个房间里。

I’ve put new locks on all the doors, and just for good measure, I’ve put locks on all the downstairs windows too.

我经在所有门上安了新锁，为更安全起，所有窗子也加了锁。