建了三峡之后，长江干流没再发生大的洪灾，但因为水库的顶托作用，支流的水灾比之前多了

来源: 天青水蓝于 2026-02-05 19:07:15 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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