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SCIENCE STUDY

Look to the sky to see new delivery drones

作者:TEENS
Aa
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咚咚咚,无人机来给你送快递啦!

词数 150 测试见IV版

建议阅读时间 6分钟

You buy a new toy online. It should come today. Knock, knock. You open the door, but can’t see a delivery person. Instead, a drone (无人机) puts the package (包裹) at your door!
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