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| 世界环境日6 月 5 0 | |||
| 世界环境日 (联合国环境与发展大会于1972年6月5日在瑞典斯德哥尔摩召开。这次大会的目的在于提醒全社会对保护大自然的重视，并建议将6月5日定为世界环境日) | |||
| 世界环境日6月5日 | |||
| 世界环境日 | |||
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