词汇	ring arch
释义	ring arch 环拱
随便看	negative dobby negative doctor test negative doctrine negative document negative dominant negative draft negative drift criterien negative driving negative dromotropic action negative dromotropic effect negative dromotropism negative dryer negative drying negative drying hanger Negative duration negative duty negative earnings negative earthed D.C.two-wire system negative easement negative echo negative economic growth negative edge negative-edge negative edge dislocation negative edge register