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Author: WikiMatrix
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English[en]
He is also the spokesman for the World's Greatest Hobby campaign sponsored by the Model Railroad Industry Association that promotes the hobby of model railroading.
Chinese[zh]
此外,葛羅斯也是由模型鐵路行業協會贊助的「World's Greatest Hobby」活動的發言人,該活動是為了促進鐵路模型一愛好。