a positive role 积极作用 ; 一个积极的作用
play a positive role 发挥积极作用 ; 起积极作用
plays positive role 有着积极的作用
positive role model 积极的模范
certain positive role 一定的积极作用
Has A Positive Role 有着积极作用
a very positive role 起到了积极的作用
plays a positive role 有着积极的作用
played a positive role 发挥了积极的作用
His ideas played a positive role in the history, but they also had some problems as well.
亚当·期密提出的节约思想,在历史上起过积极作用,同时又存在着一些矛盾的地方。
参考来源 - 试论亚当·斯密的节约思想Finally also narrated the oral confession positive role and the negative effect in this part.
在这一部分的最后叙述了口供的积极作用与消极影响。
参考来源 - 口供获取激励机制研究（研究生论文）·2,447,543篇论文数据，部分数据来源于NoteExpress
Exercise is one of the few factors with a positive role in long-term maintenance of body weight.
锻炼是对长期保持体重有积极作用的少数因素之一。
Secondly, by being a positive role model for their children, parents can shape their characters to a great extent.
其次，通过成为孩子的积极榜样，父母可以在很大程度上塑造他们的性格。
起到一个积极的示范作用。
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