例句與造句

1. An index is an ordered subset of the table on which it is created
   索引是創(chuàng)建索引所基于的表的有序子集。
2. To alter the arrangement of a set of items from two or more ordered subsets to one or more other subsets each containing a number of items , commonly one , from each of the original subsets in a specified order that is not necessarily the order of any of the original subsets
   將兩個(gè)或多個(gè)有序子集中項(xiàng)目集合的排列按所指明的順序改變成一個(gè)或多個(gè)子集，每個(gè)子集包含若干個(gè)（通常為一個(gè)）來(lái)自每個(gè)原先子集中的項(xiàng)目，但不一定和任何原先子集中的排序一樣。
3. It's difficult to find ordered subset in a sentence. 用ordered subset造句挺難的