| 单词 | ultralight | 
| 释义 | ultralight1 of 2adjective  ul·tra·light  ˈəl-trə-ˌlīt    : extremely light in mass or weight  an ultralight alloy an ultralight pullover ultralight2 of 2 noun  : a very light recreational aircraft typically for one person that is powered by a small gasoline engine   ultralight adjectiveas in ultralightweight Synonyms & Similar Words Relevance 
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