play the dominant role

They need to learn how to be dominant and submissive because each monkey might have to play either role in the future.

他们需要学习如何主导和服从，因为每只猴子在未来都可能扮演其中任意一个角色。

Nowadays, with the rapid development of the information industry, cell phones play a dominant role in people's life.

如今，随着信息产业的飞速发展，手机在人们的生活中起着举足轻重的作用。

Phragmites australis and Phalaris arundinacea populations are dominant populations in the wetland, which play important role in the Mount Beigu wetland ecosystem.

芦苇和虉草种群是北固山湿地中的优势种群，在北固山湿地生态系统中发挥着重要的作用。