Astrocytes, which comprise about half the brain, had not been thought to play an active role in brain processes, and were thought to serve as the "glue" of the brain.

星细胞构成了几乎半个大脑，此前被认为是大脑的“胶水”而并非在脑活动中起作用。

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Corporations in South Korea not only serve as the cornerstone of the country's economy, but also play a role in the world economy.

韩国大企业不仅是韩国经济的主体，而且也成为世界级大企业。

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But the Tour's pace of play is a problem for the rest of golf, since the pros serve as amateurs' primary role model for how the game should be played.

WSJ: John Paul Newport on Slow Play | Golf Journal

"Recent developments in the U.S. wireless industry serve as a direct reminder of the key strategic role deep spectrum resources and a global LTE ecosystem will play in the long-term success of any 4G mobile broadband operator, " said Erik Prusch, President and CEO of Clearwire.

ENGADGET: Clearwire sees wholesale revenues dip, LTE delays as it posts a $41.3 million net loss in Q3