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1·Carbon is an important chemical element.

碳是一种重要的化学元素。youdao

2·Trees help absorb carbon.

树木帮助吸收碳。youdao

3·The carbon cycle is very important to the Earth.

碳循环对地球很重要。youdao

4·Scientists study the properties of carbon.

科学家研究碳的特性。youdao

5·We need to understand the role of carbon.

我们需要了解碳的作用。youdao

6·Carbon has many uses in life.

碳在生活中有很多用途。youdao

7·Plants use carbon for photosynthesis.

植物利用碳进行光合作用。youdao

8·Carbon can be made into different materials.

碳可以制成不同的材料。youdao

9·The ocean stores a large amount of carbon.

海洋存储大量的碳。youdao

10·Carbon is crucial for the existence of life.

碳对生命的存在至关重要。youdao