oxygen
英 [ˈɒksɪdʒən]
美 [ˈɑːksɪdʒən]
n. 氧; 氧气
复数：oxygens
Collins.2 / BNC.3719 / COCA.3839
牛津词典
noun
- 氧；氧气
a chemical element. Oxygen is a gas that is present in air and water and is necessary for people, animals and plants to live.
柯林斯词典
- N-UNCOUNT 氧；氧气
Oxygenis a colourless gas that exists in large quantities in the air. All plants and animals need oxygen in order to live.- The human brain needs to be without oxygen for only four minutes before permanent damage occurs.
人的大脑缺氧4分钟后便会造成永久性损伤。
- The human brain needs to be without oxygen for only four minutes before permanent damage occurs.
英英释义
noun
- a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas
双语例句
- He had the presence of mind to put his emergency oxygen tube in his mouth.
他镇定自若地把应急输氧管放进了自己的嘴里。 - Blood is the medium in which oxygen is carried to all parts of the body
血液是将氧气输送到人体各个部位的媒介。 - Oxygen is one of the basic elements of substance.
氧是物质的基本元素之一。 - Plants and trees filter carbon dioxide out of the air and produce oxygen.
花草树木会过滤掉空气中的二氧化碳并制造氧气。 - It is 2,300 metres above sea level, so a given volume of air contains only about one-third as much oxygen as it would at sea level
这是在海拔2,300米的高空，因此一定体积空气的含氧量只有海平面处的约1/3。 - Water is a compound containing the elements hydrogen and oxygen.
水是含有氢元素和氧元素的化合物。 - The drug increases the number of red cells in the blood, enhancing oxygen uptake by 10 percent.
这种药增加了血液里的红细胞数量，从而将摄氧量提高了10%。 - Oxygen is vital to life.
氧是生命所必不可少的。 - Hydrogen combines chemically with oxygen to form water.
氢和氧化合成为水。 - Water contains hydrogen and oxygen.
水含有氢和氧。