单词	knock on
释义	请查阅词条：knock
随便看	personal cleanliness personal column personal columns personal computer personal computers personal computing personal construct personal contract personal crisis personal day personal digital assistant personal digital assistants personal diligence personal distance personal effects personal equation personal equity plan personal estate personal explanation personal flotation device personal foul personal god personal government personal high personal history 将来将来时将校将次将要将计就计将近将错就错将门将领 Strahlmaschine Strahlmittel Strahlpumpe Strahlquerschnitt Strahlreichweite Strahlrichtung Strahlsauger Strahlspiegel Strahlspritzengeschwindigkeit Strahlstärke