单词	running trap
释义	running trap noun : a trap (as a U trap) in a pipe permitting liquid flow but forming a barrier against sewer gases Word History First Known Use 1880, in the meaning defined above
随便看	hooted hootenannies hootenanny hooter hooters hootier hootiest hooting hootingly hootnannies hoots hooty hooved hoovedder hooveddest hooveder hoovedest Hoover hoover apron Hoover Dam Hoovercrat hoovercratic hoovered hoovering hooverism

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