switchblade
英 [ˈswɪtʃbleɪd]
美 [ˈswɪtʃbleɪd]
n. 按钮式弹簧刀
复数：switchblades
COCA.28340
柯林斯词典
- (按钮式)弹簧小折刀
Aswitchbladeis a knife with a blade that is hidden in the handle and that springs out when a button is pressed.
in BRIT, use 英国英语用 flick-knife
英英释义
noun
- a pocketknife with a blade that springs open at the press of a button