opening at... 地方有空缺openingn.开口；开始；张开；开幕；空缺adj.开头的动词open的现在分词.opening for a teller出纳员职位的空缺opening loop control开环控制opening for business交易机会opening appendectomy开腹阑尾切除术opening architecture开放体系结构opening range number孔排数opening test library开放题库opening of the pores毛孔开放Opening and Cleaning开清棉Opening hole on pipe管道开孔