Social science is a collective name, covering a series of individual sciences.
社会科学是一个总称,涵盖一系列独立学科。
He wrote several popular science books, including the bestseller A Brief History of Time which made him a household name.
他写了几本科普书籍,其中畅销书《时间简史》使他家喻户晓。
John Hayes: My name is John Hayes, and I am an assistant professor of food science at Pennsylvania State University.
约翰·海斯:我叫约翰·海斯,是宾夕法尼亚州州立大学食品科学系助理教授。
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