钢(鋼)gàng 1.把刀放在布、皮、石头等上面磨,使它快些{sharpen; whet; strop}: ～刀布{knife-whetting cloth}|把刀～一～。{sharpen a knife} 2.在刀口上加上点ㄦ钢,重新打造,使更锋利{reinforce the edge (of a knife, etc.) by adding steel and re-tempering}: 这口铡刀该～了。{This hay cutter needs to be reinforced.} ⇒钢gāng