想认真算一下，但无奈能力有限。假设梯子倾斜30度，一楼10尺，2楼18尺，应该能算出。

来源: crazydinosaur 于 2025-04-06 14:02:24 [旧帖] [给我悄悄话] 本文已被阅读：次

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