Thought provoking poem. Derivative at the edge is infinity.

来源: godog 于 2023-10-31 16:53:14 [] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)
回答: Light and Shadow-44 From Shadow to Light 由 颤音 于 2023-10-30 11:02:11
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