Correct

塌落

/ tā luò /
Strokes

Example

As a Verb

collapse; topple/fall down; cave in

1
Dǐngpéng
顶棚
luò
塌落
le
  
,
zài
men
他们
shēnshàng
身上
  

The roof toppled over them.

2
Fángdǐng
房顶
luò
塌落
  

The roof has caved in.