How To Use Keen-sighted In A Sentence

• This was more for effect than from any defect of vision, for he was as sharp as a needle; and could see a bit of spunyarn adrift or a rope out of place aloft even quicker than the commander, keen-sighted as he was. Crown and Anchor Under the Pen'ant
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• What leveret could escape amidst so many keen-sighted hunters? The Love of Books : The Philobiblon of Richard de Bury
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