switchblade knife

英 [ˈswɪtʃbleɪd naɪf]

美 [ˈswɪtʃbleɪd naɪf]

网络  弹簧刀; 折叠刀

英英释义

noun

• a pocketknife with a blade that springs open at the press of a button
  Synonym:switchbladeflick-knifeflick knife