对于地球上的生物来说,太阳、空气、水、食物和盐是我们生存所必须的物质。现在要对您讲述的是我们每日必不可少但又不被留意到的氧。当我们考虑什么东西对身体最健康时,首先想到的可能会是健康的食品和清洁的水源,很少会意识到氧也在为我们辛勤的工作着。氧气燃 The sun, air, water, food, and salt are all things that we need to survive on Earth. What we are going to tell you now is the oxygen that is essential to our daily life but not yet noticed. When we think about what is best for our health, the first thing we think of may be healthy food and a clean source of water, and it is seldom realized that oxygen is also working for us. Oxygen burning