英语词汇“helmet”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	helmet
释义	helmethelmet /ˈhɛlmɪt/ ●●● W3 noun [countable] Etymology ETYMOLOGYhelmet Origin: 1400-1500 Old French helme helmet a hard hat that covers and protects your head → see also crash helmet, pith helmet
随便看	oxidation-reduction reaction oxide oxidize oxidizing agent oxtail oxyacetylene oxygen oxygenate oxygenated oxygenation oxygen mask oxygen tent oxymoron oyez oyster oyster bed oz. Ozarks, the ozone ozone depletion ozone-friendly ozone hole ozone layer P p.

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