Precise是指论点论据得是精确的,例如,你想说wikipedia is a large-scale information sharing website,不能单单止于此,为了使文字precise,你得说明为什么wikipedia就是large-scale的,所以应该这样:wikipedia is a large-scale information sharing website,essay writing service on report.lxws.net,because it attracts 78 million visitors per month and has more than 91000 active contributors(Tillotsen,2010).