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A nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas,the simplest and lightest and most abundant element in the universe. 一种非金属单价元素，通常为无色无味、极易燃烧的双原子气体，宇宙中最简单、最轻、最丰富的元素。
a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals. 一种银白色软质单价元素，碱金属属，已知最轻的金属，存在于许多矿物中。
a nonmetallic univalent element; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite. 一种非金属单价元素，通常为黄色的刺激性有毒易燃气体，氧化性极强，从萤石、冰晶石或氟磷灰石中回收。
a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe. 一种非金属单价元素，通常为无色无味、极易燃烧的双原子气体，宇宙中最简单、最轻、最丰富的元素。
6. a soft silver-white univalent element of the alkali metal group;the lightest metal known;occurs in several minerals. 一种银白色软质单价元素，碱金属属，已知最轻的金属，存在于许多矿物中。
6. a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals. 一种银白色软质单价元素，碱金属属，已知最轻的金属，存在于许多矿物中。收藏指正
In a printer, the removable type element. 印刷机上可拆卸的打印部件。
a nonmetallic univalent element; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite 一种非金属单价元素，通常为黄色的刺激性有毒易燃气体，氧化性极强，从萤石、冰晶石或氟磷灰石中回收
He's in his element when playing badminton. 他打起羽毛球来真是得心应手。
This heater needs a new element. 这个加热器需要一组新电阻丝。
I'm out of my element in political discussions. 我不喜欢参加政治讨论。
Maintenance of PC is in my element. 我对电脑的维修保养很在行。
Sulphur was not identified as an element until1810. 1810年以前还没有认出硫是一种元素。
The scientists are in search of a new element. 科学家们正在寻找一种新元素。
The univalent,unsaturated organic radical C3H5. 烯丙基单价的不饱和的有机自由基
He was out of his element at the ball. 他在舞会上感到格格不入。
A univalent organic radical,C2H5. 乙基一种一价烃基的
There's an element of truth in his story. 他说的有些道理。
Of,relating to,or containing univalent copper. 一价铜的属于、关于或包含一价铜的
Water is a fish's natural element. 水是鱼的自然栖息地。