"switchblade" in Chinese (Simplified)
弹簧刀
Definition
弹簧刀是一种折叠刀，按下按钮或开关时刀刃会自动弹出。
Usage Notes (Chinese (Simplified))
“Switchblade” 多用于法律或犯罪语境，和普通折叠刀不同，它能自动弹出刀刃。许多国家或地区禁止携带此类刀具。
Examples
He found a switchblade on the ground.
他在地上捡到了一把**弹簧刀**。
A switchblade opens with the push of a button.
**弹簧刀**只需按下按钮即可弹出。
Carrying a switchblade is illegal in many countries.
在许多国家，携带**弹簧刀**是违法的。
Why do you have a switchblade in your bag?
你包里为什么有一把**弹簧刀**？
He clicked the button and the switchblade snapped open.
他按下按钮，**弹簧刀**弹了出来。
The movie villain always seems to carry a switchblade.
电影反派总是带着一把**弹簧刀**。