词汇	push-down nesting
释义	push-down nesting 下推嵌套
随便看	Virtual Education virtual education action zone virtual education environment virtual effect electric field virtual ego in virtual space virtual electrical apparatus virtual electric circuit Virtual Electronic Lab virtual electronic platform virtual electronic technology virtual electronic workbench virtual element method virtual-element method virtual elements Virtual emitter virtual employee virtual employment virtual emulating virtual emulation Virtual Endocope virtual endoscope Virtual endoscopic Virtual Endoscopy Virtual Endoscopy in Branch Structure Virtual endotoscope