賣出去很便宜，買回來比較貴。有電池晚上可以用，區域性停電，有電池就可以正常用電。

來源: 原上草2017 於 2025-01-20 16:51:24 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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