area 是可数还是不可数？

可数名词 n.[C] 区域；地区 art of a country;part of the world This is a redevelopment area. 这是个重新开发区。 the desert areas of North Africa 北非沙漠地区 Some areas of the town are dirty. 这个城里的一些地区很脏。 A park is a large area with trees and grass. 公园是一个有树木和草地的大片地方。不可数名词 n.[U] 面积 size of a flat place If a room is 3 metres wide by 3 metres long its area is 9 square metres. 如果一个房间是三米宽三米长，它的面积就是九平方米。 Our school covers an area of 300 mu. 我们学校占地三百亩。 The farm covers a large area. 这农场面积很大。 注意area和district，zone，region的区别