So in the spring of his thirtieth year, Issa set out traveling in the tradition of haiku poets.(于是，在三十岁那年的春天，芭蕉遵循俳谐诗人的传统，出门旅行。)
Thirty-three thousand people think that Thursday is their thirtieth birthday.(三万三千人认为星期四是他们的第三十个生日。)
A day is about one thirtieth of a month.(一天大约是一个月的三十分之一。)
One second of arc movement is one thirtieth of a millimetre.(一弧秒的移动是一毫米的三十分之一。)
John scored a goal in the thirtieth minute of the match.(约翰在比赛的第30分钟踢进一球。)
On Friday evening, he was also celebrating his thirtieth birthday.(在周五的晚上，他还要度过他30岁的生日。)
Please hand in your paper before June thirtieth.(请在六月三十日前交论文。)
The thirtieth on the list is a young man.(名单上第三十个人是个年轻人。)
Al Thagher's Class of 1976 is approaching the thirtieth anniversary of its graduation; no reunion has been scheduled.(AlThagher学校1976届的班级毕业即将30周年，却没有安排任何聚会。)
The present crop of books and documentaries about Marilyn Monroe exploit the thirtieth anniversary of her death.(现在这批有关玛丽莲·梦露的书籍和记录片是借她去世三十周年纪念之机而发行的。)
