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to knit (one's eyebrows); to furrow; to contract
彼かれは眉まゆを顰めしかめた。
He knitted his eyebrows.
なぜそんなに眉まゆを顰めるしかめるのか。
Why do you knit your eyebrows so much?
彼女かのじょは心配しんぱいそうに眉まゆを顰めしかめていた。
She was knitting her eyebrows worriedly.