So in the spring of his thirtieth year, Issa set out traveling in the tradition of haiku poets.(于是，在三十歲那年的春天，芭蕉遵循俳諧詩人的傳統(tǒng)，出門旅行。)

Thirty-three thousand people think that Thursday is their thirtieth birthday.(三萬三千人認(rèn)為星期四是他們的第三十個(gè)生日。)

A day is about one thirtieth of a month.(一天大約是一個(gè)月的三十分之一。)

One second of arc movement is one thirtieth of a millimetre.(一弧秒的移動(dòng)是一毫米的三十分之一。)

John scored a goal in the thirtieth minute of the match.(約翰在比賽的第30分鐘踢進(jìn)一球。)

On Friday evening, he was also celebrating his thirtieth birthday.(在周五的晚上，他還要度過他30歲的生日。)

Please hand in your paper before June thirtieth.(請(qǐng)?jiān)诹氯涨敖徽撐摹?

The thirtieth on the list is a young man.(名單上第三十個(gè)人是個(gè)年輕人。)

Al Thagher's Class of 1976 is approaching the thirtieth anniversary of its graduation; no reunion has been scheduled.(AlThagher學(xué)校1976屆的班級(jí)畢業(yè)即將30周年，卻沒有安排任何聚會(huì)。)

The present crop of books and documentaries about Marilyn Monroe exploit the thirtieth anniversary of her death.(現(xiàn)在這批有關(guān)瑪麗蓮·夢(mèng)露的書籍和記錄片是借她去世三十周年紀(jì)念之機(jī)而發(fā)行的。)