| 单词 | ultradistance | 
| 释义 | ultradistanceadjective  ul·tra·dis·tance  ˌəl-trə-ˈdi-stən(t)s    : relating to, taking part in, or being an extremely long-distance sports competition or activity  an ultradistance runner/coach an ultradistance race/course ultradistance cycling | 
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