Tā dàbìng yì cháng, miànróng kūgǎo, shòu de ràng rén xīnténg.
After a serious illness his face was haggard, and he was so thin it hurt to look at him.
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In the phrase 形容枯槁 'haggard and gaunt', 形容 is the old noun 'appearance', not the verb 'to describe'. It goes back to 《渔父》 in the Songs of Chu, which shows 屈原 in exile by the river, gaunt and haggard.