vi.

1. 倒塌
   Having been neglected for years, the house collapsed.

   這所房子因年久失修而倒塌了。

2. 崩潰，瓦解；（價格）暴跌；（計畫等）突然失敗
   Their project collapsed for lack of money.

   他們的計畫因缺錢而告失敗。

3. （健康等）垮掉；衰退；累倒
   His health collapsed because of overwork.

   他的身體因工作過度而垮掉了。

4. 摺疊起來
5. （肺，血管等的）萎陷；虛脫

vt.

1. 使倒塌；使崩潰
   The weight of snow collapsed the roof.

   積雪的重壓使屋頂倒塌了。

2. 使癟掉；使萎陷
3. 摺疊
   He collapsed the wheelchair and put it on the boat.

   他將輪椅摺疊起來放在船上。

n.

1. 倒塌；崩潰[U]
   The collapse of the building caused no casualties.

   建築倒塌沒有造成傷亡。

2. 突然失敗[U][C]
3. 暴跌[U]
4. （健康等的）衰竭，垮掉[U][C]
   The collapse of his health was brought on by undernourishment.

   他的健康惡化是由營養不足造成的。

5. 虛脫；萎陷[U][C]

v.

1. (of a structure) suddenly fall down or give way.
   ▸ [usu. as adj. collapsed] (of a lung or blood vessel) fall inwards and become flat and empty.
2. fall down as a result of illness or injury.
3. fail suddenly and completely.

n.

1. an instance of a structure collapsing.
2. a sudden failure or breakdown.