Treetop walkway in Hainich National Park, Thuringia, Germany (© mauritius images GmbH/Alamy)2021-09-11 上一页 文章 River Avon in Bath, England (© Robert Harding World Imagery/Offset by Shutterstock) 下一页 文章 Asian elephants in West Bengal, India (© Avijan Saha/Minden Pictures)
