be quite distinct from each other;as different as the waters of the Jinghe and the Weihe;entirely different;make a clear distinction between purity and impurity。1.科学领域的专业人员和业余爱好者之间划不出泾渭分明的界线:因为任何规则都有例外。No clear-cut distinction can be drawn between profe ional and amateurs in science: exception can be found to any rule.2.也可以说,理智、勤奋、有才能的人可以分为两类:第一类是工作与娱乐泾渭分明;第二类人是工作与娱乐合二为一。It may also be said that rational, industrious, useful human beings are dividing into two classes: first, those whose work is work and whose pleasure is pleasure; and secondly, those whose work and pleasure are one.3.实际上,逻辑真理和事实真理并非泾渭分明,二者的区别也不是绝对的。In fact, the logical truth and the factual truth are not entirely different, and the difference between them is not absolute.4.传统媒体与互联网泾渭分明的界限也在逐渐消失,交汇点是二者都是信息的提供者。Traditional media and the internet are entirely different boundaries are gradually disappearing, is the intersection of the two are information providers.5.另一方面,韩国各派政治势力对于南北关系的态度泾渭分明,不同党派执政都把自己的政治理念灌输给国民,也在军队中造成了思