“每年全世界的树叶带走大气层中不计其数的二氧化碳。”亚利桑那大学博士生本·布兰德说道。
"Across the world leaves take a very large amount of carbon out of the atmosphere each year," said Ben Blonder a doctoral student at the University of Arizona.
这是因为他们发现了二手书市场的暴利，根据全国大学商店协会(National Association of College Stores)透露，在美国大学教科书市场上，每出售两本新书，就会有一本二手书出售。
For every two new books sold in U.S. college textbook market, one used book is sold, according to the National Association of college Stores.
本研究对哈尔滨师范大学阿城学院英语专业二年级38名学生进行了为期一年的以元认知策略训练为基础的任务写作教学。
This paper is on the basis of a training of metacognitive strategy in task-based writing for the 38 sophomores in the English Department, Acheng School of Harbin Normal University.
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