sorting standards造句

Tourism crime ' s definition , properties , characteristics , basic qualities , reasons of occurrence , sort standards and precautionary measures are the main things that this discipline studied . among these things , the definition , classifying , confirmation and prevention of tourism crime are emphases and difficulties
旅游犯罪的定义、性质、特点、产生原因、分类标准和预防策略是旅游犯罪学研究的主要内容，其中，定义、分类、产生原因、罪与非罪的界限和预防策略是研究的重点和难点。
It's difficult to find sorting standards in a sentence. 用sorting standards造句挺难的