often的比较级和最高级
often的比较级和最高级分别为more often和most often。often的意思是时常，常常，往往，大多。例句：Every so often he would turn and look at her（他会时不时回头看她一眼）。
often的例句：I have often thought about this problem（我常考虑这个问题）；Behind many successful men there is，more often than not，a woman who makes this success possible（很多成功男人的背后往往都有一位助他一臂之力的女人）。
