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n. 1. The act of piercing with a drill. 2. A training by repeated exercises. Drill"ing n.The act of using a drill in sowing seeds. Drill"ing n.[G. drillich, fr. L. trilix having three threads, fr. the of tres three + licium a thread of the warm. See Three, and cf. Twill.] (Manuf.) A heavy, twilled fabric of linen or cotton. スポンサード リンク
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