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Originala teksto - Angla - how the heart works

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Titolo
how the heart works
Teksto tradukenda
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Font-lingvo: Angla

How the heart works

Today, we talk about the object of his work. The heart is a complex organ that starts beating a few weeks after conception. At this point the heart is a tube. In the coming days, it grows and bends into the shape or the heart.

Later, it divides into four parts. As the heart beats, it pumps blood through these chambers and the blood vessels in the body. The body is estimated to have at least ninety six thousand kilometers of bloods vessels.
Rimarkoj pri la traduko
necesito una traduccion exacta.
aqui no esta el texto completo pero si me pueden ayudar con esto gracias
Laste redaktita de lilian canale - 29 Decembro 2010 16:11





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29 Decembro 2010 16:03

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