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Oxygen
01
酸素
a chemical element in gas form with no color that living things need for breathing
例
Oxygen is necessary for the combustion process in engines and fires.
Blood transports oxygen from the lungs to the tissues of the body.
Trees release oxygen into the atmosphere as a byproduct of photosynthesis.
The doctor administered oxygen to the patient to help with breathing difficulties.
Divers carry tanks of compressed oxygen to breathe underwater.
