最佳答案:factor因子.复数:factors
最佳答案:情感是一块致命的伤Feeling (feelings 有很多种,头 strong feeling, good feeling, heartless feelin
最佳答案:不能用quantity,这个只用在可数名词中Learning English needs a lot of time.楼上那样太冗长,而且Learing 较确切
最佳答案:接可数名词,many,a great many,many a ,a great/large number of ,scores of ,dozens of ,m