"Their main field, the world's largest producing field, has been in production since 1951," Hamilton told me. "Sooner or later, that's going into decline."

“他们的主要油田，也是世界上最大的油田，自1951年以来一直在开采，”Hamilton告诉我，“迟早有一天，石油产量是要减少的。”

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A minor is an alternative field of study that is a complement, or perhaps entirely different from your main field of study.

辅修课是研究领域的一种选择，是一种补充，或许会和你学习的主要领域完全不同。

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Systematic and Evolutional Botany, whose main field is the plant comparative anatomy, is one of the important subjects among the modern plant science.

系统与进化植物学是当今植物科学中的主流学科之一，植物比较解剖学是该学科的重要组成部分。

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For example, the gunfight did not really take place in the OK Corral, but near it in a field just off a main street in town.

VOA: special.2010.02.15

We have several areas we call the Green, Lincoln Field, or the Main Green.

我们有许多不同的校区，包括格林区、林肯场区或者梅因格林区。

布朗的学生们 - SpeakingMax英语口语达人

New York minor leaguer Vidal Nuno allowed two hits over five innings against Boston on the main field.

WSJ: Yankees beat Boston without Jeter

Also, because of renovations to the main field, our promised sign never materialized.

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As Sabathia and Pettitte walked toward the main field to loosen up, Rivera already had started his bullpen workout.

WSJ: Sabathia throws off the mound