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helium
美音音标: ['hiːliəm]
helium 美音 真人发音
英音音标: ['hiːliəm]
helium 英音 真人发音
英汉字典
英英字典
解释
氦;
同义
he
helium
atomic number 2
词性
n
解释
a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
示例
None