He is an expert in juvenile delinquency.他是研究青少年犯罪的专家。Some people say that violent movies are potential triggers for juvenile delinquency.一些人说暴力影片可能引起青少年犯罪.We can curb juvenile delinquency by education.我们可以通过教育来控制少年犯罪.an ...
所需的主要网络产品: 交换机, 集线器, 超五类线等.Main products to require: branch exchange, concentrator, lines etc.仪表盘非常有趣,关于固定中心网络集线器有大量的评论.The steering wheel is interesting and gets a lot of comments with its fixed centre hub.标准化组成元件工业以太网的...