fall這是什么意思

　　例句：

　　She broke her right leg in a bad fall.

　　她在一次嚴重的跌倒中右腿骨折了。

　　They announced a fall in pretax profits.

　　他們宣布了稅前利潤的下降。

　　Large flakes of snow began swiftly to fall.

　　大片大片的雪花開始飛快地落下。

　　House prices could perk up during the fall.

　　秋季房價可能會上漲。