fun做n.&adj.各有什么用法?n.的同义词是?adj.的同义词是?

n.乐趣；娱乐活动；嬉戏,嬉闹；有趣的事 同pleasure,enjoyment,amusement,good,playfulness,sport,time,entertainmentadj.使人愉快的；开心的 同funny作名词的例句：This is so much fun!实在太有意...