接着家里电线，整栋房子警报器都连在一起，那里面的电池是备用的，不用每年换！两年换一次就行了！

来源: hhtt 于 2020-11-18 11:24:15 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.