a sea of fire and a mountain of knives; extremely perilous and difficult circumstances or places; fraught with danger
为了救出被困的孩子，他甘愿闯火海刀山
To rescue the trapped child, he was willing to brave a sea of fire and a mountain of knives.
Next Idiom
a sea of fire and a mountain of knives; extremely perilous and difficult circumstances or places; fraught with danger