jellisonˈdʒeləsənCOCA¹¹⁶¹⁰⁴ 基本例句 n.杰利森¹⁰⁰ “ BSFs were developed in the1980s, ” says Jellison. “ This is the most comprehensive study to date to characterize the efficiency of different filter types.” “八十年代开发了生物沙子饮用水过滤系统”，杰利森说，“这是迄今为止全面研究不同效率的饮水系统的特点。” yeeyan