A pilot named Robert Plath invented the wheeled suitcase, and patented it in 1991.

一个叫罗伯特·普拉斯的飞行员发明了滚轮行李箱，并且在1991年取得专利权。

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This theory could help explain why eminent artists throughout history, from composer Robert Schumann to poet Sylvia Plath to Wallace — suffered mood disorders.

这种理论能够更好的解释为什么有史以来杰出的艺术家都患有情感性精神障碍，就像作曲家罗伯特·舒曼、诗人西尔维亚·普拉斯以及华莱士。

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Unlike Robert Lowell, Sylvia Plath does not have a strong sense of history, but she is very much interested in mythology.

西尔维亚·普拉斯不像罗伯特·罗威尔那样长于表现历史，她的所长是神话。

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They include artist Andy Warhol, writer Sylvia Plath and actor/director Robert Redford .

VOA: special.2011.05.27

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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This theory could help explain why eminent artists throughout history, from composer Robert Schumann to poet Sylvia Plath to Wallace -- suffered mood disorders.

CNN: Experts ponder link between creativity, mood disorders