The Sportrock Climbing Center is busy even at nine-thirty on a Monday night.

VOA: special.2009.12.09

You can see how it's laid out. This is the Frost who published that book. This is Frost at thirty-nine, Frost in a suit made by a London tailor in London.

可以看看是怎么排列的，这个是弗罗斯特,当时发表那本书的时候，这个是他39岁，在伦敦穿着伦敦裁缝做的西装。

耶鲁公开课 - 现代诗歌课程节选

It's eight thirty. I have to be at work at nine.

都八点半了。我必须九点钟到公司。

Must 实战 - SpeakingMax英语口语达人

Thirty-nine of the fifty states elect at least some of their judges.

VOA: special.2009.06.12

So at a given level of overweight out here -twenty-seven, twenty-nine, thirty-one, thirty-three are the body mass index, the women are more likely to get Diabetes then the men are.

在超重情况下,如果体重一定,这里的27,29,31,33,表示体重指数,女性比男性更易患糖尿病

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选