EntertainmentThis video features Erhu player, He Yun, playing a hit song by JJ Lin - "Jiang Nan".

二胡手（贺云）正演出一首被林俊杰唱红的歌曲“江南”。

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However, Professors Lin Jiang and Marie Thursby from Georgia Tech and Justin Tan from York University discovered that there are some exceptions to this rule, and some incumbents do manage to be inventors during the stage of technological dirsruption.

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