Poor diet and physical inactivity also each increase the risk of heart disease and have a role to play in the development of some cancers.

不良的饮食和缺乏运动也会增加罹患心脏病的风险以及助长某些癌症的发展。

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All of us have a role to play.

在这个过程中，我们每个人都扮演着特定的角色。

youdao

And here I finally have a role for you.

在这里我最终有一个角色给你了。

youdao

(Sound) She says people think we are just kids and we do not have a role.

VOA: standard.2009.11.22

And here I finally have a role for you.

在这里我最终有一个角色给你了。

哈佛公开课 - 计算机科学课程节选

My role model... wow. I used to have a role model. I really don't at this point.

我的榜样……哦，我过去曾经有个榜样，但现在，我还真没有。

对你而言，钱是？ - SpeakingMax英语口语达人

The hospital will still have a role in treating complex, life-threatening disorders and serious injuries.

FORBES: The Man Who WouldSave Health Care

About 50 minutes into the video, he mentions that paper will still have a role.

FORBES: The Beating Heart of Hewlett-Packard Makes A Case For Relevance

In that, I suspect the United Nations would also have a role to play.

UN: TRANSCRIPT OF PRESS CONFERENCE BY SECRETARY-GENERAL KOFI ANNAN AT HEADQUARTERS, 12 OCTOBER, FOLLOWING AWARD TO SECRETARY-GENERAL AND UN OF NOBEL PEACE PRIZE