endurance event series, in Arnsberg, Germany. 耐力系列活動

"Tough Mudder" endurance event series

Participants climb over a wall at the "Tough Mudder" endurance event series in Arnsberg, Germany, on September 6, 2014. (Reuters/Ina Fassbender) #
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Photos of the Week: 9/6-9/12 - In Focus - The Atlantic
http://www.theatlantic.com/infocus/2014/09/photos-of-the-week-9-6-9-12/100811/
endurance是什么意思_endurance的翻译_音标_读音_用法_例句_爱词霸在线词典
n.耐久（力），持久（力）； 忍耐，忍耐力
http://www.iciba.com/endurance/
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