Got it!

來源: yhp71 於 2025-01-13 09:54:19 [] [舊帖] [給我悄悄話] 閱讀數 : (157 bytes)
回答: a logic exercise for the brain... 由 borisg 於 2025-01-13 09:32:16

Do you refer to change both of the two switches (the one in charge of the outdoor lamp and the switch that in charge of the living room roof light)?

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