Their main job is to preserve health rather than treat illness.

他们的主要职责是保健而不是治病。

《柯林斯英汉双解大词典》

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Its main job is to search for any signs of life in places where human rescuers are unable to go.

它的主要工作是在救援人员无法到达的地方寻找生命迹象。

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But economist Jack Strauss says credit conditions threaten the main engine of job growth since two thousand one small businesses.

VOA: special.2009.11.06

So that would suggest that education is probably not going to get the job done, because that's not the main driving reason because most people know that they shouldn't eat so much junk food, but education is what we default to when we think about what to do.

所以你们可能认为,教育并不能解决这个问题,因为这不是主要原因,大部分人都知道不该吃那么多垃圾食品,教育是思考解决方法时被忽略了的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Majority Democrats and President Obama identified job creation as a main objective of the economic stimulus package Congress approved last month.

VOA: standard.2009.03.10

The main job, during the cold war, was to defend Europe from the Soviet Union.

ECONOMIST: Thirty years after the Falklands war

The main job of the futures market is to find out what the price is.

FORBES: Could We See A Summer Oil Shortage? This Economist Says Yes.

OECD, whose main job is economic research, has no experience running such a complicated negotiation.

ECONOMIST: The talking FDI blues