英语词汇“ultramarathon”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	ultramarathon
释义	ul·tra·mar·a·thon (ŭl′trə-mărə-thŏn′) n. A cross-country footrace longer than a traditional marathon (26 miles, 385 yards). ul′tra·mara·thon′er n.
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