They had to keep the lightening fire burning ,for there was no way to start it again怎么译

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• 英语阅读理解,求速解Long,long ago people made fires from lightning(闪电).But they had to keep the fire burning,for they couldn't start it again if there was no lightning.Later,they found out hitting two pieces of stone (石头)together could make a spark(火花).The spark could fire dry leaves(树叶).In this way they could make the fire again if it went out,Then people also learned to make a fire by rubbing(摩擦).They made a hole on a big piece of wood and put a smaller stick
• They had to keep the lightening fire burning ,for there was no way to start it again怎么译
• They had to keep the lightening fire burning ,for there was no way to start it again怎么译
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