The eighteen layers of hell; a metaphorical place of extreme suffering and retribution, often used to describe a dire consequence for one's misdeeds or a state of profound misery.
那些肆意妄为、伤害他人的人，最终会尝到十八层地狱般的痛苦。
Those who act recklessly and harm others will eventually experience suffering akin to the eighteen layers of hell.
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