今天是她的第三十个生日。

Today is her thirtieth birthday.

他在比赛中获得了第三十名。

He finished thirtieth in the race.

这是他写的第三十本书。

This is the thirtieth book he has written.

我们将在这个月的第三十天见面。

We will meet on the thirtieth day of this month.

第三十层提供了城市的壮丽景色。

The thirtieth floor offers a stunning view of the city.

他们今年庆祝了结婚第三十周年。

They have been married for their thirtieth anniversary this year.

他们在第三十层楼上有一个办公室。

They have an office on the thirtieth floor.

他在马拉松比赛中获得了第三十名。

He finished in thirtieth place in the marathon.

她将在下周庆祝她的第三十个生日。

She will celebrate her thirtieth birthday next week.

这个月的第三十天对他们来说是一个特别的日子。

The thirtieth day of the month is a special day for them.