名词
中文翻译：氢元素
同义词：
['He', 'H', 'Hydrogen']
例句：
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1. The hydrogen molecule is the simplest chemical compound.
氢分子是最简单的化学化合物。
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2. Helium is a noble gas with a boiling point higher than nitrogen.
氦是一种惰性气体，沸点高于氮气。
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3. Hydrogen is essential for life as it is a component of many biological molecules.
氢对生命至关重要，因为它是许多生物分子的成分之一。