Middle school students designed a solar-powered water purification system for remote communities

2025-11-20 01:09:58 分类：澳门市望德堂区 阅读(3326)

Middle school students designed a solar-powered water purification system for remote communities

An airline announced it would use more efficient engines to reduce fuel consumption and emissionsScientists found that a certain type of mushroom can boost the immune system when eaten regularly

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Engineers designed a new type of insulation that reduces home energy use by 40%The postal service introduced a same-day delivery service for packages in major cities

A celebrity chef cooked a special meal for a charity gala that raised $500000 for hunger relief

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