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简单介绍一种动物并说说给人们带来了什么好处

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先介绍一种动物,再说明利用该动物的特点,人们发明了什么。

The dragonfly does over the major contribution to the mankind, it wants to eat up a lot of mosquitos from cradle to the grave, this is still insignificant, mainly is its body structure to inspire by importance for mankind, naturally, once we see it, the nature would remind of helicopter, difficult way both have what contact by all means?That's right, the designers of helicopter be at studied dragonfly again and again of wing after, pass by to improve continuously function of making the helicopter to just attain perfect result.

蜻蜓对人类做出过重大贡献,它的一生要吃掉很多蚊子,这还微不足道,主要是它的身体结构给人类以重要启迪,不用说,我们一看见它,就自然会想起直升飞机,难道两者之间有什么必然联系吗?没错,直升飞机的设计师们就是在反复研究了蜻蜓的翅膀后,经过不断改进才使直升飞机的性能达到完美效果的。

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本文标题:简单介绍一种动物并说说给人们带来了什么好处 - 初中英语作文_初中生英语作文_七年级英语作文
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