1、five的序数词是: fifth

2、Thefifthscene was the climax of the play ..

3、第五场是全剧的高潮。

4、So thefifthday of creation ended .

5、创世的第五天就这样结束了。

6、He put his opponent out in thefifthround .

7、他在第五个回合中将对手击昏。

8、The boxer was laid out in thefifthround .

9、那个拳击手在第五回合中被击昏在地。

10、Ourfifthconcern is with modulation noise .

11、我们要讨论的第五个问题是调制噪声。