A cell is the basic unit of life.
细胞是生命的基本单位。
A cell is the smallest structure that can live and reproduce.
细胞是能够生存和繁殖的最小结构。
A cell is the smallest structure that can live and reproduce.
细胞是能够生存和繁殖的最小结构。
Cells grow and develop, reproduce and interact with the environment.
细胞生长、发育、繁殖并与环境相互作用。
Photosynthesis is one of the most important biological processes.
光合作用是最重要的生物过程之一。
It allows plants to capture and use light as an energy source.
它使植物能够捕捉并利用光作为能量来源。
Photosynthesis is the process of converting light energy into chemical energy.
光合作用是将光能转化为化学能的过程。
A virus is a small biological structure that attacks and enters cells.
病毒是一种攻击并进入细胞的小型生物结构。
Once inside a cell, a virus reproduces and makes many copies of itself.
病毒一旦进入细胞，就会进行自我复制。
Some diseases such as influenza are viruses.
有些疾病，如流感，是病毒。
Bacteria are one-celled forms of life that are all around us.
细菌是我们周围的单细胞生命形式。
Although they have a single-cell structure, they are very important.
虽然它们是单细胞结构，但它们非常重要。
Many bacteria are inside us and help us digest our food.
我们体内有许多细菌，它们帮助我们消化食物。
Many bacteria are inside us and help us digest our food.
我们体内有许多细菌，它们帮助我们消化食物。
DNA is a complex molecule that stores information and can make copies of itself.
DNA是一种复杂的分子，它可以储存信息并进行自我复制。
Nearly every cell in a person's body has the same DNA.
人体内几乎每个细胞都有相同的DNA。
The information stored in DNA tells cells what to do and is necessary for reproduction
储存在DNA中的信息告诉细胞该做什么，这是繁殖所必需的
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