Positive role

积极───positive;作用───effect

She had managed to pull herself together and, to her credit, continued to look upon life as a positive experience.───她已经努力振作起来，而且值得称赞的是，她仍然积极乐观地看待生活。

Having a good diet gives me a sense that I'm doing something positive and that I'm in control.───合理膳食让我感觉自己并非无所作为且能安排好自己的生活。

The athlete tested positive for steroids.───这个运动员类固醇检测呈阳性。

Good day to you, Bernard! It's a positive delight to see you.───你好，伯纳德！见到你真高兴。

The man's worse than irritating, he's a positive menace!───这个人不只惹人生气, 简直是讨厌透了.

I adopted a positive outlook on life.───我开始抱持积极向上的人生观。

I'm trying to think positive thoughts.───我尽力往积极的方面想。

Drugs again rained on the Olympics'parade as another athlete tested positive for an illegal substance.───兴奋剂再次煞了奥运会的风景,又有一名运动员的违禁药物检测结果呈阳性.

I wish you'd be more positive.

I'm absolutely positive it was him.

I adopted a positive outlook on life.

I hope u'll be more positive overall.

One must be positive,(sentence dictionary) but not too positive.