These critters play vital roles in our health.

而就是这些不起眼的微生物对我们的身体健康起到了至关重要的作用。

Silk weaving plays a vital role in Lyon's history.

丝绸纺织在里昂的历史中扮演了非常重要的角色。

It plays a vital role in design and everyday life.

它在设计和日常生活中起着至关重要的作用。

Color plays a vital role in design and everyday life.

色彩在设计和日常生活中起着至关重要的作用。

Barn plays a vital role in the storage of rice.

在这个潮湿的环境里，禾仓对于稻米的储藏起着至关重要的作用。

Police officers play a vital role in maintaining social stability.

在维持社会治安方面，警察扮演了至为重要的角色。

The mangroves play two vital roles in the local community.

红树林在当地社区扮演着两个重要角色。

Communities play a vital role in collectively responding to outbreaks.

社区在集体应对疫情方面发挥着至关重要的作用。

Photosynthesis plays a vital role in supplying our planet with oxygen.

光合作用在为地球供氧方面起着至关重要的作用。

The city played a vital role in America's westward expansion in the 19th century.

美国西部开发期间，圣路易市一直担当重要角色。

The Seine's vital role in Paris's culture and economy will outlast the games.

塞纳河在巴黎文化和经济中的重要作用将比奥运会延续更久。

South Africa has the world's largest rhino population, giving it a vital role in conservation efforts.

南非有着全世界最大的犀牛群，因此该国在犀牛保护上发挥着关键角色。

Number four. Sleep disturbances and stress. Sleep plays a vital role in the healing of your body.

睡眠障碍和压力。睡眠对于休整身体至关重要。

It means speaking out about the vital role of higher education in our society to create opportunity and equality.

我们应该认识到高等教育在创造机会、推动平等中的重要作用。

Such big “prime contracting” companies often play a vital role in nurturing smaller firms in an economy.

如此大的基本合同企业经常在扶植小公司经济方面起着重大的作用。

You may not think about bacteria very often, but they play a vital role in our lives.

你可能不会经常想到细菌，但它们在我们的生活中起着至关重要的作用。

Aside from playing the part of waterfront attraction, they also play a vital role within the marine ecosystem.

除了起到吸引人的作用外，它们在海洋生态系统中也起着至关重要的作用。

He said he had played a vital role in the kidnapping of western hostages in Yemen in 1998.

他说此人在1998年西方人质在也门被绑架事件中发挥关键作用。

These get less press than antibodies, but play an equally vital role in battling infections and securing long-term protection.

这些比抗体受到的关注少，但在对抗感染和获得长期保护方面发挥着同样重要的作用。

And insects play a vital role in the decomposition of all kinds of organic matter, from leaves to roadkill.

昆虫在各种有机物的分解过程中起着至关重要的作用，从树叶到路上被轧死的动物都是如此。