These tiny things form the base of the food chain and play an important role in the global carbon cycle.

这些微小的东西构成了食物链的基础，并在全球碳循环中发挥着重要作用。

While we may not recall our nocturnal visions, scientists increasingly believe our dreams play an important role in memory and learning.

尽管我们回想不起夜间梦景，科学家日益相信，我们的梦在记忆和学习中起重要作用。

These "philhellenes" were to play an important role in mobilizing support for Greek independence.

这些“爱好希腊的人”在动员支持希腊的独立中都扮演着重要的角色。

Clowns play an important role in a circus.

小丑在马戏团起着重要作用。

They chose RDF to play an important role in this effort.

在这项重构工作中，他们选择了 RDF 在此项目中发挥重要作用。