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N-COUNT
(電路的)開關，閘，轉換器
A switch is a small control for an electrical device which you use to turn the device on or off.
例句
Leona put some detergent into the dishwasher, shut the door and pressed the switch.
利昂娜將一些清潔劑放入洗碗機，關上門后按了開始鍵。
...a light switch.
電燈開關
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VERB
轉換;改變;轉變
If you switch to something different, for example to a different system, task, or subject of conversation, you change to it from what you were doing or saying before.
例句
Estonia is switching to a market economy...
愛沙尼亞正在向市場經濟轉軌。
The law would encourage companies to switch from coal to cleaner fuels...
該法律將鼓勵企業轉而使用比煤更加清潔的能源。
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V-ERG
轉移(注意力);(注意力)轉變
If you switch your attention from one thing to another or if your attention switches, you stop paying attention to the first thing and start paying attention to the second.
例句
My mother's interest had switched to my health...
母親轉而關注起我的健康來。
As the era wore on, she switched her attention to films.
隨著這個時代慢慢過去，她把目光投向了電影業。
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VERB
交換;調換;對調
If you switch two things, you replace one with the other.
例句
In half an hour, they'd switched the tags on every cable...
半個小時內，他們就給每根電纜都換了標簽。
The ballot boxes have been switched.
投票箱被人調換了。