单词	back vent
释义	back vent noun : a ventilating pipe attached to a waste pipe on the sewer side of its trap to prevent siphonage back venting noun Word History First Known Use 1915, in the meaning defined above
随便看	Lisburne, Cape lisch reaction lise creek indian lisente liseran purple lish lishaw lisi lisianthus lisianthuses Lisieux lisinopriles lisinoprils lisk liskeardite lisle Lisle, de lisles lism lisp lisped lisper lispers lisping lispinglier

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