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[VOA慢速-今日美国] VOA慢速新闻附字幕:交易商在展会上展出大麻相关产品
Many trade shows are held in the Washington, D.C. area. Jewelry, cars, electronics and other industries have shown their products and services in the past.2015-03-06 编辑：Sunny
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[商务篇] 展会 Booth
史蒂文作为销售员在展摊前，他正向客户介绍产品。2016-07-26 编辑：Daisy
