介绍:
An opinion poll by Bloomberg showed America’s vice-president, Joe Biden (who has yet to announce his candidacy), catching up with Hillary Clinton in the race for the Democratic nomination. On the Republican side of the presidential contest, prediction markets now show Marco Rubio, a senator from Florida, ahead of Jeb Bush, the mainstream contender with the biggest war chest.
opinion poll： 民意调查
candidacy：参选
catch up with：赶上
nomination：提名
prediction：预测
senator：参议员
mainstream：主流的
contender：竞争者
war chest：竞选资金
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