单词	PCV valve
释义	PCV valve noun ¦pē(ˌ)sēˈvē- : an automotive-emission control valve that recirculates gases (as from blow-by) through the combustion chambers to permit more complete combustion Word History Etymology positive crankcase ventilation First Known Use 1965, in the meaning defined above
随便看	tut-tutted tut-tutted (over or about) tut-tutted over or about tut-tutting tut-tutting (over or about) tut-tutting over or about tutania Tutankhamen tutankhaten tutball Tutchone tutchones tutee tutees tutela tutelae tutelage tutelages tutelar tutelaries tutelars tutelary tuteli Tutelo tuteloes

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