例句與造句

1. The expressive power of xquery is comparable to the criterion of relational completeness " defined for database query languages , though no such formal standard has been defined for an xml data model
   Xquery的表達能力可以與為數(shù)據(jù)庫查詢語言定義的“關(guān)系完整性”標準相比，雖然還沒有為xml數(shù)據(jù)模型定義這樣的正式標準。
2. It's difficult to find relational completeness in a sentence. 用relational completeness造句挺難的