overlockWiktionary 原文英/ˈəʊvəˌlɒk/美构词拆解overover-前缀locklock词干over-Above, or higher. · Superior.词源说明From over- + lock.释义名词noun1(sewing) A stitch that sews over the edge of one or two pieces of cloth for edging, hemming or seaming.动词verb1(sewing) To stitch in this manner.2transitiveTo make the bolt of a lock