这是加州大学圣迭戈分校和南加州大学的联合研究者们5月21日在美国声学协会会议上公布的发现，这次会议在俄勒冈州首府波特兰举行。

[Cantonese audio clip] That’s the finding of a study by U.C. San Diego and U.S.C. researchers presented May 21st at the Acoustical Society of America meeting in Portland, Oregon.

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他是科罗拉多大学医学院毕业，他完成了他的研究生教育，慈善医院在加利福尼亚州圣迭戈。

He is a graduate of the University of Colorado Medical School, and he finished his post graduate education at Mercy Hospital in San Diego, California.

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