helmet是什么意思,helmet怎么背,怎么记,helmet的词根词缀巧记速记方法,helmet构词,构成,中文翻译_英语词典

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helmet 头盔

释义2： helmet
/ 5helmit /

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◙ noun
1. a hard or padded protective hat, various types of which are worn by soldiers, police officers, motorcyclists, sports players, and others
• （士兵、警察、摩托车手、运动员等戴的）头盔，防护帽
2. [Botany] the arched upper part (galea) of the corolla in some flowers, especially those of the mint and orchid families
• [植] （尤指唇形科和兰科花朵的）花冠盔瓣，唇瓣
3. (也作 helmet shell)a predatory mollusc with a squat heavy shell, which lives in tropical and temperate seas and preys chiefly on sea urchins
• 外颚叶
4. Family Cassidae, class Gastropoda
• 冠螺科，腹足纲♦ helmeted adjective1. late Middle English: from Old French, diminutive of helme, of Germanic origin; related to helm

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