BOTH与ALL的不同之处在于以下几点: 前者和后者的汉语意思虽都为“都”,但BOTH用于“两者都”,而ALL用于“三者都” 第二点:如果BOTH与AND 连接的话,既可连接可数名词,也可连接不可数名词.BOTH 和BOTH OF都加名词 例如,THERE ARE MANY TREES ON BOTH SIDES OF THE ROAD;I LIKE WATER AND AIR,THEY ARE BOTH VERY IMPORTANT TO OUR LIVES. BOTH放在系动词后,放在实意动词之前 ALL 既可修饰可数也可修饰不可数名词.例如: ALL THE APPLE ARE IN THE CAR;ALL OF THE WATER HAS BEEN DRUNK BY ME. 希望对你有所帮助