You think your product will appeal most to teachers ages twenty to thirty, so you decide to put your advertisement in their favorite magazine, the one about classroom activities.

你认为你的产品最能吸引20到30岁的老师，所以你决定把你的广告放在他们最喜欢的杂志上，那本关于课堂活动的杂志。

youdao

The crown of thorns starfish is large, twenty-five to thirty-five centimeters in diameter, and has seven to twenty-one arms that are covered in spines.

棘冠海星很大，直径长达25到35厘米，有7到21条手臂，上面布满了刺。

youdao

People should retire between the ages of twenty-one and thirty-five, then work like hell till they die.

一个人应该在21岁到35岁之间退休，然后再拼命地工作，一直到死为止。

youdao

Mister Sumrall says NASA estimates the new Ares One will be twenty to thirty times safer than the Space Shuttle.

VOA: special.2009.12.30

There's twenty-one days, there's thirty days, there's twenty-four hours. Now look at this!

有二十一天法,三十天法,二十四小时法,还有这个

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

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

L.T. member named Britnee Brown, who has been with the company for a little more than a year, took a call that was a record five hours, twenty-five minutes, and thirty-one seconds long, from a woman on the East Coast interested in Masai Barefoot Technology shoes, which purport to mimic supposedly salubrious barefoot-on-the-beach walking with curved rubber platforms.

NEWYORKER: Happy Feet

Thirty-one-year-old Britney looks a great deal different from twenty-six-year-old Britney.

FORBES: When Will Britney Spears Be Free Of Conservatorship?

The author once made a list of all the pieces he had written in maybe twenty or thirty years, and then put a check mark beside each one whose subject related to things he had been interested in before he went to college.

NEWYORKER: Progression