effect,influence是不可数名词吗?
问题描述：
effect,influence是不可数名词吗?
答
它们既可作可数名词又可作不可数,要看具体情况,请看字典解释：effect名词 n.1.结果[C][U][(+on/upon)]2.效果,效力;作用;影响[C][U][(+on/upon)]This had a great effect upon the future of both mother and son.这...