touch·paper
noun/ˈtʌtʃpeɪpə(r)/
/ˈtʌtʃpeɪpər/
- a piece of paper that burns slowly, that you light in order to start a firework burning
（焰火的）火硝纸，导火纸 - Light the blue touchpaper and retire immediately to a safe distance.
点亮蓝色触摸纸并立即退回到安全距离。
- Light the blue touchpaper and retire immediately to a safe distance.