| 单词 | the mains | 
| 释义 | the mains in British Englishthe main distribution network for water, gas, or electricity the mains in British Englishthe place where the supply of water, electricity, or gas enters a building  If you're given warning of a flood, turn off the electricity, gas, and water at themains. the mains in British Englishthe point in a wall where you can connect electrical equipment to the power supply  Make sure plugs are disconnected from the mains. | 
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