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	Octopodidae octopodidaes octopodous octopods octopole octopus octopuses octopushers octoroa octoroon octoroons octospore octosporous octostiate octostyle octosyllabic octosyllabics octosyllable octosyllables octothorp octothorpe octothorps octotonic octroi octrois

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