The thinking is that the leading du of dubious means “two” and that the uncertainty is of which choice to make between two choices.

具体的考虑是这样的，dubious的前半部分du有“two（两个）”的意思，而单词所表示的不确定性在于，人们到底应该选择两个选项中的哪一项。

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During he months leading up to the 2007 moment, the US sub-prime lending crisis led to uncertainty in the banking system and difficulties in Britain of Northern Rock.

在他几个月直至2007年为止，美国的次级贷款危机导致银行系统和英国的Northern Rock的困难不确定性。

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Some dovish statements by the RBA highlighting global economic uncertainty and a slowdown in domestic inflation are leading markets to forecast a cut of 25bps to 4.5%.

澳洲联储发表的一些偏软言论强调了全球经济变数以及国内通胀压力减弱，这些言论引导投资者预期澳洲联储降息25个基点，至4.5%。

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Franco, whose new book "The Crisis of the Vatican Empire" describes the Vatican's utter dysfunction, said cardinals are still traumatized by Benedict's resignation, leading to uncertainty heading into the conclave.

NPR: Conclave To Elect Next Pope Opens Amid Uncertainty

Risk of EU default leading to market uncertainty: The EU heads, led by France and Germany, are trying to restructure Greek debt held by banks but uncertainty remains over whether rating agencies will still view this event as a default.

FORBES: Caterpillar Could Crawl To $116 With Earnings on Friday

Uncertainty leading up to the next election, and growing anxiety among diplomats and foreign observers of Bangladesh, suggest a hard, tense time ahead.

ECONOMIST: The prime minister sets the country on a dangerous path