helium
noun [ U ] uk/ˈhiː.li.əm/ us/ˈhiː.li.əm/ (symbol He)
氦
a chemical element that is a gas lighter than air, that will not burn and is used in balloons, airships, and some types of lights
江苏热线英汉汉英双解词典包含207361条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。