fall
单词辨析：
通常指房屋等倒塌，强调突然性。
The roof collapsed under the weight of snow.
房顶在雪的重压下突然坍塌了。
A lot of tall buildings collapsed in the earthquake.
许多高楼在地震中倒塌了。
尤指由石头或岩石构成的建筑物或土地崩塌或崩裂。
Many houses crumbled into cinders.
许多房子坍塌，成了废墟。
The old stone wall began to crumble.
那座旧石墙开始崩塌。
The cliff has gradually crumbled away.
峭壁已经逐渐坍塌。
通常指因失去平衡等而倒塌或跌倒。
Many trees fell in the storm.
在那场暴风雨中，许多树都被刮倒了。
The falling wall showered dust on them.
倒塌的墙壁弄了他们一身土。
I fell and hurt my knee.
我跌了一跤，摔伤了膝盖。
尤指人因过于劳累、体弱等而倒下或坐下。
She sank to the floor without the support of his shoulder.
少了他肩膀的支撑，她倒在地板上。
He was stunned and sank to the ground.
他被击昏，倒在地上。
She sank into a chair, exhausted.
她筋疲力尽地倒在椅子里。
相关例句：
The work was never finished and bit by bit the building fell apart.
工程一直没有完工，于是楼一点点地坍塌了。
By chance the book beside him fell open to St. Paul's warning to the Romans
他身旁的书偶然翻开到写着圣保罗对罗马人的告诫那页。
He was fantastically handsome — I just fell for him right away.
他帅极了——我一下子就爱上了他。
Officials say that one or two engines fell away from the plane shortly after takeoff.
官员们说飞机起飞后不久就有一两台引擎脱落了。
Totally exhausted, he tore his clothes off and fell into bed
他疲惫至极，扯下衣服，一头倒在床上。
Europe's monetary system is falling apart
欧洲货币体系正在走向瓦解。