兜兜兜尔
一楼 THE FIRST FLOOR二楼 THE SECOND FLOOR，要是说一栋楼有几层的话，就用 A/THE XXX floor building、department等等比如这栋楼有8层可以说是：The Building has 8 floors,即 The eight floor building或 The building with 8 floors
小熊缭乱1990
1the frist floor, 2the second floor,3 the third floor,4 the fourth floor,5 the fifth floor,6 sixth, 7seventh, 8eighth, 9ninth, 10tenth, 11eleventh, 12twelfth,13 thirteenth, 14fourteenth, 15fifteenth, 16sixteenth, 17seventeenth, 18eighteenth, 19nineteenth, 20twentieth, 21twenty-first,22 twenty-second, 23twenty-third, 24twenty-fourth, 25 twenty-fifth.这里是一至二十五，每个单词前面加the 后面加上floor，就是第几层楼了，第一个是例子，前五个都是完整的了。希望有帮到你:)
