square meter 和square kilometerit covers an area of 1.72( one point seventy- two) square kilometre.The Shanghai Expo Site covers a total area of 5.28 sq km.it covers an area of 48000 square meters.是表示s
网友回答
1.72( one point seventy- two) square kilometre
1.72看上去是复数,按英文来说只是单数,所以kilometer不加s
a total area of 5.28 sq km.
缩写不加san area of 48000 square meters.
全写的要加s
也就是说 square meter 和 square kilometer 都是可数的我,一个是平方米 另一个是平方千米