then后面加可数名词或者是动名词。
than：
prep./conj.(用以引出比较的第二部分)比；(比较数量、距离等)多于，小于，少于；(表示一事紧跟另一事发生)就
扩展资料
His second book is better than his first.
他的第二部书比第一部好。
Look at the time ─ it'；s much later than I thought.
看看时间吧，比我想象的要晚多了。
The system has the ability to run more than one program at the sametime.
该系统能够同时运行一个以上的程序。
With the first goal he used his head in more ways than one.
他进第一个球时从多方面动了脑筋。
The situation was more complicated than they had at first realized.
形势比他们最初意识到的更为复杂。
