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·marathon \"ˌ\ noun Etymology: ultra- + marathon (I) : a footrace longer than a marathon • ul·tra·marathoner \"ˌ\ noun
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