问题描述：
英语翻译
The Ages of Man
Human achievements come in all shapes and sizes.Knocking two rocks together can be just as important as sending a man to the moon.When ancient humans learnt to use stone tools and make fire,it meant the beginning of modern society.Later discoveries------bronze,iron,steam,electricity,to name a few------continued the development of society and shaped history.So important were these achievements that we often divide human history into time periods named after the latest technology of the time:the Stone Age,the Bronze Age,the Iron Age and so on.
The Ages of Man
Human achievements come in all shapes and sizes.Knocking two rocks together can be just as important as sending a man to the moon.When ancient humans learnt to use stone tools and make fire,it meant the beginning of modern society.Later discoveries------bronze,iron,steam,electricity,to name a few------continued the development of society and shaped history.So important were these achievements that we often divide human history into time periods named after the latest technology of the time:the Stone Age,the Bronze Age,the Iron Age and so on.
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