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(fēng)吹走了。