And finally,new medical devices play a role in heart health.

VOA: standard.2010.06.04

And so in the case of A Mask here, it's the Lord John Egerton, the Earl of Bridgewater who commissioned Milton to write a piece honoring his own inauguration in his new role as the Lord President of Wales.

所以在《面具》这个例子中，是贵族约翰埃杰顿，布里奇沃特伯爵,指派弥尔顿去写一篇文章,来歌颂他掌管威尔士的就职典礼的。

耶鲁公开课 - 弥尔顿课程节选

which is featured on his new album Nobody Left to Crown,Meanwhile, in a role he seems to relish, Havens will continue to act as a benign, bearded ambassador for the Woodstock state of mind.

VOA: standard.2009.08.15

After their talk on the sidelines of the U.N. General Assembly meeting in New York, Mr.Obama said the United States and Japan have a major role in working with other countries toward economic recovery.

VOA: standard.2009.09.23