To be so overcome with grief (especially for a deceased parent) that one becomes extremely emaciated and gaunt, appearing skeletal.
听到噩耗后，他整个人都变得哀毁瘠立，让人看了不免心生怜悯。
After hearing the tragic news, he became utterly wasted by grief, a sight that couldn't help but evoke pity in anyone who saw him.
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