na. 自来水总管
[网络] 总水管;主水管;给水干管
词型变化:名词复数形式 : water-mains

water-main的用法和样例:

例句

用作名词(n.)
  1. Water is supplied from the mains.水的供应来自总水管。
  2. Half the village were flooded out by a burst water main.由於总水管破裂,半数村民被迫离开了家。

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