1. 名詞
   main複數: 總管
   (自來水或瓦斯等的)總管道
   (電或鐵路等的)幹線
   限定複數the mains:
   管網系統
   電力網
   

   同義字詞
   beef,brawn,muscle
   continent,landmass,mainland
   body,brunt,bulk,chief,core,generality,mass,staple,weight
   

例句

1. Just plug it in the mains ?
2. As ever, be careful with mains .
3. Finally switch on at the mains .
4. The mains were split into sections.
5. There is no domestic gas mains supply.
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