单词	trap door
释义	请查阅词条：trapdoor
随便看	performance artist performance bond performance capture performance car performance-enhancing performance grammar performance history performance indicator performance of one's duties performance poet performance poet performance poetry performance practice performancer performance rating performance-related performances performance space performance table performance test performance tested performance testing performance text performancy performant 冶游冶炼冶艳冶金冷冷不丁冷不防冷丝丝冷傲冷僻 U_Bahn U-Bahn Ubblohde_Viskosimeter Uberstundenarbeit Uberstundenlohn Ubertragungsspesen U_Bolzen U_Boot UB(Universitätsbibliothek) U_Druck_Dose