"浮游植物生活在海洋表面，在那里他们把二氧化碳释放到海里，同时放出氧气。
Phytoplankton live at the ocean surface, where they pull carbon dioxide into the ocean while giving off oxygen.
植物在光合作用的时候会释放氧气，但是有机物分解时也需要相同量的氧气。
Plants emit oxygen while they are photosynthesising, but the same amount of oxygen is used up if the carbon compounds they make are broken down.
植物从太阳得到能量并释放出氧气，这是人类和动物在生活中所必需的。
As the plants receive energy from the sun, they give out oxygen, which is necessary for human and animal life.
一些科学家认为植物夜间吸入氧气而释放二氧化碳。
Some scientists believe that plants inhale oxygen at night and give off carbon dioxide.
虽然大多数的植物都是在白天释放氧气、夜晚休息，但沙巴蛇草则全天候的释放氧气——即使在你睡觉的时候也是如此。
While most plants release oxygen during the day and rest at night, the snake plant releases oxygen all the time - even when you sleep.
很显然，植物释放到大气中的氧气很多。
The quantity of oxygen which is liberated to atmosphere by growing plants is obviously very large.
植物吸收了部分污染物质，并把氧气释放到大气中。
The natural ecological cycle depends on plants, which absorb some pollutants and release oxygen to the air.
植物在夜间的确释放二氧化碳，但是总的来说释放的氧气多(这个大家都知道)。
Plants emit carbon dioxide at night, but in general they emit oxygen more than carbon dioxide (everybody knows it).
植物在夜间的确释放二氧化碳，但是总的来说释放的氧气多(这个大家都知道)。
Plants emit carbon dioxide at night, but in general they emit oxygen more than carbon dioxide (everybody knows it).
应用推荐