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The most important thing_最重要的事英语作文100字

I think the most important thing for mankind is fire. Fire can ripen food. It can keep us healthy.Fire is needed to boil water, and it is also because of fire that we humans can live for such a long time.If there is no fire in this world, you may need to think about where you are now.Fire can kill some low-grade bacteria.People use fire every day. We need fire.

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