词汇	conceal zipper
释义	conceal zipper n.隐形拉链
随便看	Positive Identification Radar Advisory Zone positive identifications positive identity positive ignition positive illusion Positive Illusions positive image positive-image positive image material positive image reproduction positive-images positive immittance converter positive immittance inverter positive immune response positive impact positive injection back squeeze positive inotropic positive inotropic action positive impacts positive impedance positive implication Positive Implicative BCI-algebras positive implicative BCK-algebra positive impulse positive incentive