Correct

坍

/ tān / 
Strokes

Definition

to collapse

Example

As a Verb

collapse; fall; crumple; give way; cave in; tumble

1
Chuáng
床
tūrán
突然
tān
坍
le
了
  
。

The bed suddenly gave way.

2
Qiáng
墙
suíshí
随时
huì
会
tān
坍
  
。

The wall is likely to fall/topple at any time.

3
Fángwū
房屋
tān
坍
le
了
  
。

The house collapsed/tumbled.

4
Dìzhèn
地震
jiāng
将
yīxiē
一些
jiànzhùwù
建筑物
zhèn
震
tān
坍
le
了
  
。

The earthquake crumbled some buildings.