To have disheveled hair and a dirty face; to look utterly unkempt and slovenly, often suggesting neglect or hardship.
他连日忙于研究，回到家时已是乱首垢面，完全顾不上个人形象。
He was busy with his research for days, and when he returned home, he was utterly disheveled and dirty-faced, completely neglecting his personal appearance.
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