Engineers designed a new dam to prevent flooding in a river basin

2025-11-20 05:24:39 分类：石河子市 阅读(57144)

Engineers designed a new dam to prevent flooding in a river basin

An airline announced it would use more biofuel to power its planes and reduce carbon emissionsScientists found that a certain type of plant can be used to treat headaches and migraines

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A celebrity chef cooked a special meal for a charity event that raised $100000 for hunger relief

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