英语词汇“helium”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	helium
释义	helium noun uncountable chemistry UK /ˈhiːliəm/ DEFINITIONS1 1 a chemical element which is a gas that is lighter than air. Its symbol is He and it is often used for lifting large balloons. Synonyms and related words Gases acetylene ammonia argon Synonyms and related words Chemical elements actinium alkali metal aluminium helium noun uncountable chemistry US /ˈhiliəm/ DEFINITIONS1 1 a chemical element which is a gas that is lighter than air. Its symbol is He and it is often used for lifting large balloons. Synonyms and related words Gases acetylene ammonia argon Synonyms and related words Chemical elements actinium alkali metal aluminum
随便看	attack ad attack dog attacker attain attainable attainment attempt attempted attend attendance attendant attendee attend to attention attention economy attention line attention seeker attention seeking attention-seeking attention span attentive attenuate attenuated attest attestation

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