单词：pebbly mudstone
卵石泥岩
单词：pebbly mudstone 相关文章
Community Gardens Thrive in Urban Jungle Friday, April 22, is Earth Day, a time set aside to appreciate nature and to dedicate ourselves to protecting and sustaining it. New York City, a place many think of as an urban jungle, is home to more than 50
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VOA标准英语2011年(四月)
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Friday, April 22, is Earth Day, a time set aside to appreciate nature and to dedicate ourselves to protecting and sustaining it. New York City, a place many think of as an urban jungle, is home to more than 500 community gardens where the crops are a
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