Her birthday falls on the thirtieth of September every year.
她的生日每年都在第三十天的九月。
They celebrated their thirtieth wedding anniversary last month.
他们上个月庆祝了他们的第三十个结婚纪念日。
The meeting is scheduled for the thirtieth of this month.
会议定在这个月的第三十天。
She finished in thirtieth place in the marathon race.
她在马拉松比赛中获得了第三十名。
On the thirtieth day, they finally reached their destination.
在第三十天,他们终于到达了目的地。
He plans to retire on his thirtieth birthday next year.
他计划在明年的第三十个生日退休。
The book is due back on the thirtieth of this month.
这本书应在这个月的第三十天归还。
Her thirtieth birthday party was a grand celebration.
她的第三十个生日派对是一场盛大的庆祝活动。
The project deadline is the thirtieth of November.
项目截止日期是十一月的第三十天。
He finally got his driver's license on the thirtieth attempt.
他终于在第三十次尝试时获得了驾照。
thirtieth anniversary 第三十周年纪念
thirtieth birthday 第三十岁生日
thirtieth day 第三十天
thirtieth floor 第三十层
thirtieth position 第三十位
thirtieth chapter 第三十章
thirtieth attempt 第三十次尝试
复数: thirtieths;