可能是stress引起，找找环境及和人交流是否有变化，多准备几个沙盆，待有改善后再将沙盆数目逐渐减少。

来源: Clove 于 2014-11-20 09:11:56 [旧帖] [给我悄悄话] 本文已被阅读：次

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