On March thirteenth, Clyde Tombaugh and V.M Slipher announced the discovery of a new planet.

VOA: special.2010.07.11

They can push down the thirteenth partial and bring up the fifteenth and thereby change the sound of a clarinet into a French horn.

压低第十三分音,或者提高第十五分音,从而将单簧管的声音变成圆号的

耶鲁公开课 - 聆听音乐课程节选

So, there's a wonderful thirteenth-century commentator that says that God needed creatures who could choose to obey him, And therefore it was important for Adam and Eve to do what they did And to learn that they had the choice not to obey God so that their choice for God would become endowed with meaning.

十三世纪有一位著名的评论家说,上帝需要有能力选择遵从他的生物，因此，夏娃亚当做他们所做的事情很重要,并发现他们可以选择不遵从上帝,那么他们对上帝的遵从便有了意义。

耶鲁公开课 - 旧约导论课程节选

That decision came on November thirteenth, nineteen fifty-six, almost a year after Missus Parks's arrest.

VOA: special.2009.03.08

On July thirteenth, eighteen sixty-three, a crowd formed outside a New York draft office.

VOA: special.2009.10.29

Today we celebrate our thirteen-hundredth show on Friday the thirteenth with music from the band Arcade Fire, and a story about a huge shopping center in Minnesota.

VOA: special.2010.08.13