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为了给孩子们留下故乡的记忆,有关方面在北海道举办了一场特殊的活动,让孩子们触摸和观察国家特别天然纪念物“阿寒湖绿球藻”。<br /><br />这里生长着大片绿球藻,平时禁止公众进入。活动当天,在厚约40厘米的冰面上凿洞进行观察。<br /><br /> ...
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