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1·America's thirtieth president was, in some ways, an unusual kind of person to lead the country.

在某些方面，美国的第三十任总统是个领导这个国家的与众不同的人。

2·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。《柯林斯英汉双解大词典》

3·The Balloon spaceship uses water to push it through space and costs about one-thirtieth of a normal spaceship.

“气球”宇宙飞船使用水力向太空推进，成本大约是普通宇宙飞船的三十分之一。

4·If I were to promise you a holiday on the thirtieth of the month after next, do you think you would forget the date?

如果我答应你下个月30日休假，你认为你会忘记这个日期吗？

5·When March comes to the thirtieth day.

三月正当三十日。

6·A day is about one thirtieth of a month.

一天大约是一个月的三十分之一。

7·The thirtieth on the list is a young man.

名单上第三十个人是个年轻人。

8·Thirtieth sliver item deferred acceptance.

第三十条子项目延期验收。

9·Please hand in your paper before June thirtieth.

请在六月三十日前交论文。

10·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。

第三十个的

1·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。

第三十

1·On Sunday, I hope to score my thirtieth goal in a Milan jersey.

周日，我希望我能打进代表米兰的第三十个球。