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

单词	ultramarathon
释义	WordReference Random House Unabridged Dictionary of American English © 2024 ul•tra•mar•a•thon (ul′trə mar′ə thon′, -thən),USA pronunciation n. Sportany footrace of 50 or more miles. ultra- + marathon 1975–80
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