tinderbox

详细解释:n. 火绒合, 高度易燃物, 容易发火的人

英语解释：

名词 tinderbox:

a dangerous state of affairs; a situation that is a potential source of violencea box for holding tinder

例句：

Referred to the crowded prison as a tinderbox of suppressed violence.把拥挤的监狱称作一个装满了被压制的暴力的火药筒