The problems in the U.S. financial sector have refocused attention on the economy as the biggest issue in the presidential campaign.

美国金融业的动荡再次使经济成为这次大选中人们关注的最大议题。

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Among the annoying challenges facing the middle class is one that will probably go unmentioned in the next presidential campaign: What happens when the robots come for their jobs?

中产阶级面临的恼人挑战之一是：当机器人要抢占他们的工作时，他们该怎么办？而这个问题在下届总统竞选中很可能被忽略。

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Such a decision would entail a huge political risk in the midst of the presidential campaign.

这样的决定会在总统大选之际导致一个巨大的政治风险。

《柯林斯英汉双解大词典》

The man who led the successful Obama presidential campaign, David Plouffe, will help the party prepare for Congressional elections in November.

VOA: standard.2010.01.24

Kennedy was a mentor during his early days in the United States Senate, and was an early and avid booster of his presidential campaign.

VOA: standard.2009.08.26

During the Russian presidential campaign, Dmitri Medvedev, in his capacity then as deputy prime minister, was featured almost daily on state-controlled news programs but opponents were largely excluded.

VOA: standard.2010.02.01

Ms. Sun, his spokeswoman, said the money was intended to be used in the presidential campaign.

WSJ: New York Attorney General Candidate Donated to Campaigns in States Where His Then-Firm Sought Work

Finding new sources of energy has been a recurring issue in the presidential campaign.

CNN: Stripper wells try to get more oil from ground

It would be most encouraging to see this play out in the presidential campaign.

FORBES: Note for "Super Wednesday" - Either Party Can Occupy the Student Loan Issue