mains
US /meɪnz/
UK /meɪnz/
複數名詞
市電, 主管道
the principal supply of electricity, water, or gas to a building or area
範例:
•
The house is connected to the electricity mains.
房子接通了市電。
•
Always unplug the appliance from the mains before cleaning.
清潔前務必拔掉電器電源。