motive可数吗

motive是可数名词：n.动机;原因;目的adj.发动的;导致运动的复数： motives；1、Im suspicious of his motives. 我怀疑他的动机。2、I was suspicious of his motives. 我怀疑他的动机。3、His motives are unclear. 他的用意不明。