自然的世界,我们只做防御性的工程,不去改天换地,比如植树防止山泥滑坡,并非植树改变景观。你的清理河道目的是什么?
本帖于 2024-09-22 09:32:32 时间, 由普通用户 Sequoia_CA 编辑
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