有關knockdown的精選大全

用knockdown造句子,“knockdown”造句
Ifyou'veseenvideoofaknockdown,youknowitisclearlyfrighteningandstressful.HealthinsecticidecoatingtypeWS-Iwasshowntohaveverystrongknockdownandcidaleffectonmosquitoes,fliesandcockroachs.Shareenexhibitst...
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