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to throb (with pain); to ache; to smart; to twinge
to rankle; to gall; to rile
古傷が雨の日にうずく。
The old wound throbs on rainy days.
歯がうずいて眠れなかった。
My tooth ached so much I couldn't sleep.
雨の前になると古傷がうずいた。
My old wound throbbed before the rain came.