美国波士顿大学的博士生伊恩·史密斯说：“城市在对抗气温上升和二氧化碳增加方面处于重要地位。”
Ian Smith, a Ph.D. student of Boston University in the United States, said, "Cities are in the important position in fighting against rising temperatures and increasing CO2."
此后，美国每年毕业的博士生又翻了一番，达到64000人。
Since then America's annual output of PhDs has doubled, to 64, 000.
在美国，博士生实习教师联盟的出现结束了之前大学与博士生群体之间不清晰的责任关系，自那以后工资就丰厚多了。
In America the rise of PhD teachers' unions reflects the breakdown of an implicit contract between universities and PhD students: crummy pay now for a good academic job later.
而在有些国家，只有那些在国外出生的博士生们的工资和前景比较差，比如英国和美国。
In some countries, such as Britain and America, poor pay and job prospects are reflected in the number of foreign-born PhD students.
大家好，我是美国的博士生，想练习我的中文，希望我们能一起进步。
Hey everybody, I'm an American PhD student who would like to practice my Chinese a bit.
理论的提出者是美国加州大学洛杉矶分校从事疟疾测试的博士生，安德鲁。冯，他将用这笔钱去研究他的观点。
It was proposed by Andrew Fung, a UCLA doctoral candidate working on the malaria test, who will use the money to develop his idea.
理论的提出者是美国加州大学洛杉矶分校从事疟疾测试的博士生，安德鲁。冯，他将用这笔钱去研究他的观点。
It was proposed by Andrew Fung, a UCLA doctoral candidate working on the malaria test, who will use the money to develop his idea.
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