传回值，指出资料存放区是否包含指定的资料结构描述物件。
Returns a value indicating whether the data store contains the specified data-schema object.
您可以在结构描述物件名称及其所有参考的前后加上方括号，以遵循物件命名的最佳作法。
You can add square brackets around a schema object name and all its references to follow best practices for object naming.
“我对都市传奇十分着迷，比如爱斯基摩人对于‘雪’有50个单词来表达，而且文化的繁荣会丰富描述物件的词汇，这十分有意义，”李先生在红迪网上说道。
'I was fascinated by the urban legend that Eskimo has 50 words for snow, and the idea that a culture will develop a richer vocabulary for things it cares, ' said Mr Lee on Reddit.
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