开口: open one's mouth; start to t ...部: part; section; division; reg ...开口部位: position of opening鞋眼开口部位: eyestay opening孔型的开口部分: live hole梅毒性开口部冠状动脉病: syphilitic ostial coronary disease口部: oral area开口: 1.(开口说话) open one's mouth; start to talk; begin to speak 不开口 hold one's tongue; 难以开口 find it difficult to bring the matter up2.(开刃) put the first edge on a knife; sharpen the edge of a new blade3.opening aperture; [纺织] shedding; aperture; placketing; orifice; fent; hiascent; 开口订单 open order; 开口订货单 open indent; 开口合同 open-end contract; 开口机 tapping machine; 开口器 mouth gag; 开口销 linchpin; lynchpin; split cotter; split pin; spring cotter; forelock; [设计] cotter pin; 开口信件 unsealed letter鼻口部: muzzle出口部: export department; export development; export division进口部: import department口部 (部首): radical 30口部,颊部: buccal division口部,口器: buccal appendages口部的: we're having an oral test in class this week缩口部: choke围口部: adoral zone; oral groove; peristome; peristomial groove小口部: chiisakobe鼻口部分: muzzle鼻咽口部分: oral portion of nasopharynx出口部长: exports minister; minister of exports出口部门: export department; export division; exports department分设出口部: separate export department附设出口部: built-in export department归口部门: relevant departments; competent leading groups