在costco，有卖portable 的detector, 很方便。冬天一层一个，夏天也就无所谓了。

来源: jiankang888 于 2022-10-21 13:50:09 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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在costco，有卖portable 的detector, 很方便。 冬天一层一个，夏天也就无所谓了。