declarative constraint造句

例句与造句

1. w3c xml schemas let xml programmers express a new set of declarative constraints on documents for which dtds are insufficient
   w3cxmlschema可以让xml程序员表达一组新的对文档的声明性约束，而这是dtd做得不够的地方。
2. It's difficult to find declarative constraint in a sentence. 用declarative constraint造句挺难的