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Helium

['hiːlɪəm] or ['hilɪəm]

解釋/意思:

(noun.) 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).

手打:梅格--From WordNet

解釋/意思:

(n.) A gaseous element found in the atmospheres of the sun and earth and in some rare minerals.

校對:鲁本

解釋/意思:

n. a substance discovered by Lockyer in the sun's atmosphere found by Ramsay in the rare Norwegian mineral cleveite.

整理:斯特拉

例句/造句/用法:

校對:玛拉

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