She fell off a ladder and broke her arm.
她從梯子上掉下來，摔斷了胳膊。
She cycled round the corner, lost her balance and fell off.
她騎車拐彎時失去平衡，摔了下來。
I fell off the ladder.
我從梯子上跌了下來。
Two or three glasses fell off and smashed into pieces.
兩三只杯子掉了下來，摔得粉碎。
Her cap fell off in the street and blew away
她的帽子掉在大街上，被風吹走了。