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2013-05-23 12:21
求翻译：But Linda Cain Ruth, a building science professor and playground expert at Auburn University. says natural playgrounds need careful maintenance to remain safe. "A lot of people think that because it’s natural there's no maintenance, and that is not true，” Ruth said. .‘Wood rots. .., You have to make sure you have a goo是什么意思？ 待解决
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But Linda Cain Ruth, a building science professor and playground expert at Auburn University. says natural playgrounds need careful maintenance to remain safe. "A lot of people think that because it’s natural there's no maintenance, and that is not true，” Ruth said. .‘Wood rots. .., You have to make sure you have a goo
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