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TOEFL IELTS BNC: 9600 COCA: 7453

sewer

noun
/ˈsuːə(r)/
/ˈsuːər/
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  1. an underground pipe that is used to carry sewage away from houses, factories, etc.污水管;下水道;阴沟
    • a sewer pipe/system下水道/系统
    • an open sewer (= a channel on the surface of the ground that is used to carry sewage)排污明沟
    Extra Examples
    • Much of the water runs away down the sewers.许多水顺着下水道流走。
    • A network of sewer tunnels runs underneath the prison.监狱下面有一个下水道网络。
    Topics Buildingsc1
    Oxford Collocations DictionarySewer is used before these nouns:
    • line
    • rat
    • tunnel
    See full entry
    Word OriginMiddle English (denoting a watercourse to drain marshy land): from Old Northern French seuwiere ‘channel to drain the overflow from a fish pond’, based on Latin ex- ‘out of’ + aqua ‘water’.

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