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TOEFL BNC: 3719 COCA: 3839

B2 a chemical element that is a gas with no smell or colour. Oxygen forms a large part of the air on earth, and is needed by animals and plants to live.氧,氧气

Examples

Air is composed mainly of nitrogen and oxygen.

Deep-sea divers carry cylinders of oxygen on their backs.

Mountain climbers use oxygen when they reach higher altitudes.

Plants are the main source of atmospheric oxygen.

The symbol for oxygen is O2.

TOEFL BNC: 3719 COCA: 3839
oxygen

noun

ADJECTIVE | VERB + OXYGEN | OXYGEN + NOUN | PHRASES ADJECTIVEpure純氧liquid液態氧atmospheric大氣中的氧VERB + OXYGENcarry, contain輸送氧氣;含氧the blood which carries oxygen to the brain把氧輸送到大腦的血液absorb, breathe, consume, take in, use up吸收/呼吸/消耗/吸入/耗盡氧氣generate, produce, release產生氧氣;釋放氧氣After dark the plants stop producing oxygen.天黑後植物不再製造氧氣。administer, give sb供給(某人)氧氣get, receive獲得氧氣The patient didn't seem to be getting enough oxygen.病人似乎缺氧。deprive sb/sth of, starve sb/sth of不給⋯氧氣;使⋯缺氧There was a risk the brain might be starved of oxygen.大腦可能有缺氧的危險。OXYGEN + NOUNatom, molecule氧原子;氧分子level, supply氧氣水平/供給consumption氧消耗deprivation缺氧mask氧氣面罩cylinder, tank氧氣瓶PHRASESa lack of oxygen缺氧a supply of oxygen供氧
TOEFL BNC: 3719 COCA: 3839
TOEFL BNC: 3719 COCA: 3839
oxygen
Gases: acetylene, ammonia, argon...

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