讚同!俺幾十年前恰好是學環境工程的。
所有跟帖:
• 俺有首舊詩的結句:唯有眼中真實義,不隨物我作悲歡。 -潛東籬- ♂ (0 bytes) () 06/29/2016 postreply 21:16:53
• 俺有首舊詩的結句:唯有眼中真實義,不隨物我作悲歡。 -潛東籬- ♂ (0 bytes) () 06/29/2016 postreply 21:16:53
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