大师作文网翻译英语短文What does blood do for us? It brings food to all parts
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翻译英语短文
What does blood do for us? It brings food to all parts of our bodies and takes waste away from them. All parts of our bodies are made of cells(细胞). These cells are very small. They all need food all the time. No one had seen cells before the invention of microscope. No one could make pictures of cells because no one could see them. What makes the blood move round the body? The heart does. The heart is a pump. It pumps the blood and sends it round the body. The heart has rooms with doors between them. It pumps blood in and out through these doors by changing the size of the rooms so that the doors are opened and shut. The heart keeps a stream of blood going all around the body and back again to itself. The heart is a very important part of one’s body. When it stops beating, one will die.
What does blood do for us? It brings food to all parts of our bodies and takes waste away from them. All parts of our bodies are made of cells(细胞). These cells are very small. They all need food all the time. No one had seen cells before the invention of microscope. No one could make pictures of cells because no one could see them. What makes the blood move round the body? The heart does. The heart is a pump. It pumps the blood and sends it round the body. The heart has rooms with doors between them. It pumps blood in and out through these doors by changing the size of the rooms so that the doors are opened and shut. The heart keeps a stream of blood going all around the body and back again to itself. The heart is a very important part of one’s body. When it stops beating, one will die.
血液对我们有什么作用?它为我们身体每一个部分提供营养并且带走排泄废物.我们的身体是由细胞构成的,这些细胞很小,他们每时每刻都需要养料.在显微镜发明之前,没有人看到过细胞是什么样的.是什么驱动血液在身体里循环?是心脏.心脏就像一个泵,它将血液泵出并送往身体.心脏有不同的腔室,他们之间有门连接.心脏通过改变这些腔室的大小将血液泵进或者泵出这些门,这样打开或关闭门.心脏保持一定的血流量在身体里循环并且最终返回心脏.心脏是我们身体一个重要的部分.当它停止跳动,人就会死亡.
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