假设有一个灯泡和五个可以在不同时间和不同地点打开它的开关。
Imagine there are one bulb and five switches to turn it on at different times in different places.
现在假设有一个灯泡和五个可以在不同时间和不同地点打开它的开关。
Now imagine there's one bulb and five switches to turn it on at different times in different places.
由于节能灯与白炽灯泡的工作原理不同，三路开关的固定灯具和调光器需要特殊类型的节能灯泡。
Since CFLs don't work the same way as incandescent bulbs, fixtures with three-way switches and dimmers require a special type of CFL that will work with those fixtures.
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