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时间：2025-11-21 05:32:56 来源：网络整理 编辑：海北藏族自治州
Scientists developed a new method to purify water using sunlight and a simple filter
Scientists developed a new method to purify water using sunlight and a simple filter
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An international organization launched a campaign to provide clean drinking water to 500,000 people in drought-stricken areas.2025-11-21 06:07
A wildlife conservation group worked to protect forests2025-11-21 05:51
A fashion brand announced it would start using recycled polyester in all its clothing2025-11-21 05:51
Major retailers announced plans to extend holiday sales to meet high consumer demand2025-11-21 05:20
Park rangers teach visitors about Leave No Trace principles in wilderness areas2025-11-21 05:18
A major bookstore chain announced it will open 10 new locations focusing on community events2025-11-21 05:01
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Local authorities announced a ban on single-use plastic bags in all retail stores, starting from next month.2025-11-21 04:07
