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观音山森林公园一年四季空气清新，鸟语花香，负离子含量极高。
Kuanyin Mountain Forest Park all year round fresh air, fine spring high negative ion content.
youdao
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观音山森林公园一年四季空气清新，鸟语花香，负离子含量极高。
Kuanyin Mountain Forest Park all year round fresh air, fine spring high negative ion content.
youdao