grind

◎ grind是什么意思 n. 磨, 碾, 苦差, 摩擦声, 用功的学生vt. 磨擦, 磨碎, 磨光, 折磨, 压榨vi. 磨, 磨碎, 苦干 n. the grade of particle fineness to which a substance is groundn. the act of grinding to a powder or dustv. dance by rotating the pelvis in an erotic...