oxygen例句
Ozone is a highly reactive form of
oxygen gas.
臭氧是一种非常活跃的氧气形态。
Ozone is produced by the reaction between
oxygen and ultra-violet light.
臭氧由氧气和紫外线发生反应而产生。
Carbon, hydrogen and
oxygen combine chemically to form carbohydrates and fats.
碳、氢、氧化合形成碳水化合物和脂肪。