举报
8097082
恩恩,有道理,不过如果是这个意思的话要用first,两者还是有区别的 当first和firstly作副词用的时侯,如果“用于分开并依次列举所述各点”时,是没有什么区别的,可以替换。e.g. First(ly),I'll mention the advantages,then I'll mention the disadvantages. 但当用于修饰行为动词时,则只能用first. e.g. I must ask my parents first When did you first go to the country?