Her major field of study was psychology.

她研究的领域是心理学。

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Clustering analysis is a major field in data mining, which is an important method of data partition.

聚类分析是数据挖掘中的一个重要研究领域，是一种数据划分或分组处理的重要手段和方法。

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Claim: Universities should require every student to take a variety of courses outside the student's major field of study.

命题：大学应该要求每位学生修本专业外的多种课程。

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Under that, address the field of your major biology, computer science, philosophy, or whatever.

在下面，请注明你的专业,生物，计算机科技，哲学，等等。

麻省理工公开课 - 电影哲学课程节选

Two major field programs have studied these storms using dozens of mobile weather stations, aircraft and Doppler radars.

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Accomplishing this "task of explanation" will require a sustained, global effort in every major field of life, including religion, education, popular culture, government and business.

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Additionally, this information would help already enrolled college students pin down a major field of study, something that most find difficult as evidenced by statistics suggesting that at least half of students change their majors at least once.

FORBES: Ignorance Is Not Bliss