英语数学应用题翻译,急急急！！！！！！
Bob is trimming his bathroom with a row of decorative tile blocks. each block consists of 4 square tiles.
Between each twwo block there is a long recangular tile. the rectangular tiles do not need to be placed on the ends of a row.
这是条件，请翻译一下.
参考答案:Bob用一排装饰的瓷块装修厕所，每一大块瓷砖由4块正方形的小瓷砖组成，在每两大块瓷砖中有一块长方形的瓷砖．这矩形的瓷砖不需要安放在每一排的最后