例句：

　　1、Three and thirteen are also numbers.

　　三和十三也是數(shù)字。

　　2、Thirteen plus eight equals twenty-one.

　　十三加八等于二十一。

　　3、His intrepid adversary prepared to close for the thirteenth time

　　他那勇敢的對(duì)手準(zhǔn)備打第十三回合。