On the other hand, Obama will be A.S.U. 's first outside commencement speaker in thirty years, which is a big honor right there.
另一方面，奥巴马将是亚利桑那州立大学三十年来的第一位外校发言者，这也是一个很大的荣誉。
Researchers found that not only did the optimists from the 1960’s report better physical and mental functioning thirty years later, but that optimists also lived longer on average than pessimists.
研究人员发现，30年后，研究对象中，乐观主义者不但身心健康状况要好于悲观主义者，而且乐观主义者的平均寿命要比后者长。
Thirty three U. S. states ban text messaging while driving but no state bans the specific use of apps, according to the researchers.
研究人员表明，三十三个美国州禁止开车时发短信，但没有一个州禁止手机应用程序的特殊使用。
For example, in today "s increasing competition in the kindergartens, genearch are playing a very different role in kids" education compared with twenty or thirty years ago.
比如，在幼儿园竞争不断加剧的今天，幼儿家长在幼儿教育过程中所起的作用与二三十年前相比，变化就较大。
She looks very young. She "s about thirty years old, she has long hair, two big eyes and small mouth. She is funny, but she is strict with us."
她看起来很年轻。她大约三十岁，她有一头长发，一双大眼睛和一个小嘴巴。她很有趣，不过，她严格要求我们。
The subjects involved first took personality tests in the 1960's and then thirty years later they completed a follow-up self-assessment of their health status.
这个主题首次在二十世纪六十年代提出并做了人格测试，三十年后他们后续完成了健康状况的自我评价。
Please return your book(s) in thirty(sixty) days.
请您注意还书日期，按时还书。
1850 - California is admitted as the thirty-first U. S. state.
1850年的今天，加利福尼亚被承认为美国的第三十一个州。
In a recent study of people passing through major U. S. airports, it turned out that about thirty percent weren't washing their hands after using the bathroom.
最近对经由美国主要机场的人群的调查显示，大概百分之三十的人上厕所后不洗手。
Jack: it usually takes thirty minutes and then it "s a thirteen-minute walk here."
杰克：通常要三十分钟，然后走十三分钟到这里。
His art creation started in early 80's 20 century and had already gone a thirty year journey.
他的绘画创作起步于20世纪80年代初期，迄今已有三十年的历程。
His art creation started in early 80's 20 century and had already gone a thirty year journey.
他的绘画创作起步于20世纪80年代初期，迄今已有三十年的历程。
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