每隔兩年換一個，平均一年50塊，為什麽不裝？拉線麻煩多了。貴多了。安裝非常容易。

來源: 原上草2017 於 2024-12-02 10:15:24 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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