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long slits (esp. of eyes)
彼女の目は切れ長で美しかった。
Her eyes were long and narrow, and beautiful.
切れ長な目元が、彼女の顔立ちを際立たせていた。
Her long, narrow eye shape made her facial features stand out.
彼女の切れ長の瞳は、古典的な美しさを感じさせる。
Her long, narrow eyes evoke a sense of classical beauty.