相关单词临近词doubleness, double, double cylinder-type thresher, double metallic standard system, double clad single-mode fiber, double spring-ejecting device, double superheterodyne receiver, double-beam spectrophotometer, double contrast enema technique, double triaxialcollapsible test, double refraction of shear wave, double-fold-eyelid-plasty 返回 double-hump