理力，材力…。桁架啊，理力都是天書，我懷疑老師都不見得能完全搞清楚

來源: Waterchase 於 2023-08-23 07:23:40 [舊帖] [給我悄悄話] 本文已被閱讀：次

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理力，材力…。 桁架啊，理力都是天書，我懷疑老師都不見得能完全搞清楚