Either the twenty eighth or the thirtieth is fine.

28或30都行。

Well, why do not we make it the thirtieth?

嗯，那们就定30吧。

The Swan Lake on our campus was built for the thirtieth anniversary.

校园里的天鹅湖是为建校30周年而建。

He left for New York and was inaugurated there on April thirtieth.

他前往纽约，并于4月30日宣誓就职。

In point of fact, he had just turned his thirtieth year.

实际上他也不过刚刚超过三十岁。

Of course, this doesn't mean that in olden days everyone dropped dead on their thirtieth birthday.

当然，这并不意味着以前的人三十岁生日那天就会去世。

I was thinking of taking off from September first until the thirtieth . Would you be okay with that?

打算请九月1到13。这样可以吗？

Originally, I planned to have a big party to celebrate my thirtieth.

本来打算举办一个盛大的聚会来庆祝三十岁。

None of my forefathers have survived their thirtieth year.

的祖先没有一个活到三十岁。

Everyone says that your thirtieth birthday is very important.

大家都说三十岁生日很重要。

Now, he had already passed his thirtieth year, and had neither sowed nor reaped.

现，他已经年过三十，既没有播种，也没有收获。

Larsson bagged his thirtieth goal of the season in Celtic’s win.

【bag】拉尔森凯尔特人队赢的这场比赛中射入他本赛季的第 30 个球。

In 1724, it was raised to the thirtieth penny, or to three and a third per cent.

1724 年， 它被提高到三十便士， 或百分之三又三。

Until my thirtieth year, I lived in a state of almost continuous anxiety interspersed with periods of suicidal depression.

三十岁之前，一直生活一种几乎持续不断的焦虑状态中， 期间夹杂着自杀性抑郁症。

Congress set a time limit of seven years for the states to approve it. This was extended to June thirtieth, nineteen eighty-two.

国会给各州通过这个修正案一个七年的期限，时间延长到了1982年7月13。

When they went down to breakfast on the morning of the thirtieth of October, they found that the Great Hall had been decorated overnight.

10月30日那天早晨，他们下楼吃早饭时，发现礼堂一夜之间被装饰一新。

He's made a short speech and attended cultural performances at the national theater in Tokyo to mark the thirtieth anniversary of his enthronement.

他东京国家剧院做了一个简短的演讲并观看了文化表演，以此纪念他登基30周年。

America's thirtieth president was, in some ways, an unusual kind of person to lead the country. He said little. He showed few feelings.

某些方面，美国第30任总统是一位不同寻常的领导人。他话语不多，很少表露自己的感情。

'We are now at the thirtieth of April. On the fifth day from this the Visionary Nun is expected to appear.

“们现是四月三十日。预计第五天，有远见的修女会出现。

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

“如果答应你下下个月的30放假，你会忘记日期吗？”