This requires commitment to a particular occupation, branch of study or research.

成为专家需要对特定的职业、学习或研究领域有所投入。

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Speech act theory is vital for the branch of study.

言语行为理论是语际语用学的一个重要理论支柱。

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The movie psychology is a branch of study coming into being early in the movie study.

电影心理学在电影学领域里是个诞生较早的分支学科。

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But since the St.John's curriculum aims to span almost all of Western culture, students study every branch of the liberal arts - including music.

VOA: standard.2010.05.12

The CDC study relied on scientific methods to extrapolate total illnesses from disease outbreaks that were reported and monitored, said Patricia Griffin, chief of the Enteric Diseases Epidemiology Branch at the CDC and one of the authors of the new study.

WSJ: Vegetables Are the Main Cause of Food-Borne Illness, CDC Study Finds

In 1965 he persuaded the Survey to create an astro-geology branch, and began a methodical study of the moon which showed that its craters were forged almost entirely by impacts.

ECONOMIST: Gene Shoemaker

Radiologist Robert Gatenby has used a branch of mathematics known as catastrophe theory, previously used to study things like bridge collapses, to examine why tumors often come roaring back after first responding to chemotherapy.

FORBES: Magazine Article