The first step in connector development lies in understanding the vocabulary, features, and layout of your repository, so this is where the feasibility study begins.
连接器开发的第一步是理解存储库的词汇表、特性和布局，因此可行性研究就从这里开始。
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Public relation is the essence of urban planning which aim is to study methods and rules in layout or coordinate on PR according to spatial relation.