clasp knife
近义词：jackknife，
英英释义
Noun
- a large knife with one or more folding blades
例句
用作名词(n.)
- The knife mechanism is essential to any folder.刀具的机械装置对任何折刀都是必须的。
- The policmen seized the folding knife that was used by the scoundrels.干警缴获了歹徒用来行凶的折刀。