Finally, it was Robert Plath, who was an airline pilot, who invented a new, wheeled suitcase, which he patented in 1991.

后来一个叫罗伯特·普拉斯的飞行员，发明了一种滚轮行李箱，并且在1991年取得专利权。

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sent Agri-Plas an e-mail about this job and actually I interviewed,

我向普拉斯农产品公司发送邮件，然后就经过了面试，

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