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	supermarket supermarkets supermasculine supermassive supermaxilla supermaxillary supermen supermicro supermicros supermicroscope supermicroscopic supermilitant supermilitants supermillionaire supermillionaires supermind superminds superminicomputer superminicomputers superminis superminister superministers supermodel supermodels supermodern

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