fall down

US /fɔːl daʊn/
UK /fɔːl daʊn/
"fall down" picture
1.

摔倒, 倒塌

to drop to the ground, typically accidentally

:
Be careful not to fall down the stairs.
小心不要從樓梯上摔下來
The old building started to fall down after the earthquake.
地震後,那座舊建築開始倒塌