n. an abrupt failure of function or complete physical exhaustion
n. a natural event caused by something suddenly falling down or caving in
v. break down, literally or metaphorically
v. fold or close up
n. 崩溃, 倒塌, 虚脱
vi. 倒塌, 崩溃, 瓦解
vt. 使倒塌, 折叠
[计] 折叠
1. The building began to collapse after the earthquake.
这座建筑在地震后开始倒塌。
2. I felt my energy collapse after a long day at work.
在漫长的工作日后，我感到精力耗尽。
3. His hopes for a promotion collapsed when he heard the news.
当他听到消息时，他对晋升的希望破灭了。