counterbalance

n.平衡，平衡力 vt.使平衡，抵销

countenance, counter, counter-, counter-attack, counter-attraction, counter-clockwise, counter-espionage, counter-insurgency, counter-intelligence, counter-intuitive, counter-irritant, counter-offer, counter-productive, counter-productively, counter-revolution, counter-revolutionary, counter-tenor, counteract, counteraction, counterargument, counterbalancing, counterblast, counterclaim, counterfeit, counterfoil, countermand, countermeasure, counterpane, counterpart, counterparts, counterplot, counterpoint, counterpoise, counterproductive, counterproductiveness, countersign, countersignature, countersink, countervailing, countess,