trade fair

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He added that he would have plenty of time to vote, since on voting day he was trying to hawk his services at a trade fair for retirees, few of whom, he discovered, had teeth.
他补充说，他有很多时间去投票，自从投票开始，他试图在一个为退休人员举行的商品交易会上兜售他的服务，他发现，这些人当中，很少有人没牙齿。
The UN study, by the Swedish Institute for Food and Biotechnology, was aimed at an international trade fair for the food packaging industry, to be held in Germany later this month.
这项由瑞典食品与生物技术研究所主持的联合国科研项目，研究对象是食品包装工业的国际公平贸易，将在本月末于德国举行。
On the ground floor, manufacturers of bathroom products are holding a trade fair, but we head up several floors to a conference centre, where more than 20 local businesses are represented.
在酒店一层，卫浴产品制造商正举行一场贸易展。不过，我们上了几层楼来到一个会议中心，有20多家当地企业已经到场。

Project Green Search is looking for young women who are also concerned about the environment, animal welfare,fair trade and human rights.
The cost of not having organic and not having fair trade and not having all the things
没有通过有机培养的食物加上不平等交易等等，
吃有机食品 - SpeakingMax英语口语达人
that deals specifically with the issues of human trafficking, or maybe they make fair trade clothing
专门处理人口贩卖组织或者是生产公平贸易服装的非营利组织.
关于自由和时尚 - SpeakingMax英语口语达人

You can see the industry's opulence at the trade fair it mounts each spring in Basel.
FORBES: Time Is Money

a large event at which companies show and sell their products and try to increase their business

A trade fair is an exhibition where manufacturers show their products to other people in industry and try to get business.