fall off是什么意思

a recent fall-off in sales近来销售量的减少One slip and you could fall off the building.脚下一滑就可能从建筑物上跌下去.When you are learning to ride a bicycle, you often fall off.初学骑自行车时, 常会从车上掉下来....

fall off的音标：fall off的英式发音音标为：[fɔ:l ɔf]fall off的美式发音音标为：[fɔl ɔf]...