The U.N. would play a major role in monitoring a ceasefire.

联合国将在监督停火方面发挥主要作用。

《柯林斯英汉双解大词典》

The media play a major role in influencing people's opinions.

媒体在影响舆论方面发挥着重要作用。

《牛津词典》

Your morals and beliefs will play a major role in shaping your character.

你的道德观和价值观对塑造你的性格有很大作用。

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But caregivers play a major role. The care givers include relatives.

VOA: standard.2010.05.10

And the schools play a major role in this and thus all these kids who grew up speaking patois or Provencal or Gascon-- I forgot Gascon, around Bordeaux, they can sing the Marseillaise in acceptable French as they march off to be slaughtered.

在这里面学校扮演了主要角色,所以这些说着,方言或者普罗旺斯语或者加斯科涅语的孩子们,我把加斯科涅语忘了,在波尔多附近,他们操着勉强能接受的法语唱着马赛曲,上前线等待被屠杀

耶鲁公开课 - 1871年后的法国课程节选

So I feel like psychology is just going to play a major role

所以我觉得心理学正在发挥越来越重要的作用，

毕业于心理学专业 - SpeakingMax英语口语达人

Our lifestyle decisions play a major role in our risk of developing breast cancer.

FORBES: Environmental Risks For Breast Cancer: What You Need To Know

Peer-to-peer videos play a major role in our recruiting section for both new and experienced agents.

FORBES: Coldwell Banker on How Online Video and the iPad is Powering its Business

In the State Department's 2007-2008 Rhythm Road Tours, hip-hop will play a major role.

NPR: Hip Hop Takes on Diplomatic Role with State Department