小心！那只黄蜂的螯针可能还留在你的手臂上。

Be careful! The wasp's ___stinger might still be in your arm.

我的手指接触到辣椒后，立刻感到一阵刺痛。

I felt a sharp ___stinger in my finger after touching the chili pepper.

他看似友好的建议里藏着伤人的刺。

His seemingly friendly advice had a hidden ___stinger in it.

警方在高速公路上设置了阻车钉来拦截逃逸车辆。

The officers placed ___stingers on the highway to stop the fleeing vehicle.