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	screen grid screen memory screen off screen one's (telephone calls screen one's (telephone/phone) calls screen one's phone) calls screen out screen pass screen plate screen presence screen print screen printing screen process screen saver screen test screen time screen tree screen wiper screen-test screen-wall screenable screened screened (off) screened off screened out

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