单词	house trap
释义	house trap noun : a trap in the house drain for preventing the entrance of gases from a sewer Word History First Known Use 1851, in the meaning defined above
随便看	siriones Siriono sirionos siris Sirius siriuses sirkar sirkars sirkeer sirki sirkies sirkis sirky Sirleaf sirloin sirloins sirmark Sirmian Sirmilik National Park Sirmuellera Sirobasidiaceae siroc sirocco siroccos sirocs

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