详细解释:n. 轻振手腕刀刃即可从柄中伸出的小刀
英语解释：
名词 flick-knife:
a knife with the blade hidden in the handle; the blade springs out when a button is presseda pocketknife with a blade that springs open at the press of a button同义词：switchblade, switchblade knife, flick knife