The Yes campaign has spent most of the past few weeks in a defensive position, struggling to refute claims about the cost, complexity and international rarity of their voting model.

支持派阵营则在过去几周的多数时间内处于防御自卫地位，艰难地批驳针对其投票制度的开销、复杂度和全球罕见度的言论。

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But the withdrawal of an audit, let alone a decade's worth of them, is a rarity.

但是收回审计报告是罕见的，更遑论是凝聚了十年的心血的一个审计报告。

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LAZY summer days are a rarity for America's firefighters, who must battle dozens of big blazes around the west.

闲适的夏天对于美国的消防队员来说是罕有的，他们肯定战斗在西部众多的火场中。

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Numerous Biblical passages sing the praises of the verdant nature of Lebanon, a rarity in the generally parched region of the Middle East.

FORBES: Magazine Article

Novartis went ahead because it saw a rarity: one of the few untapped drug markets left.

FORBES: Crisis in the Cabinet

As a result stock markets around the world began rallying off their late August lows, and produced the rarity of a substantial rally in September and October, historically the worst two months of the year.

FORBES: Bernanke Had To Brag About It, What He's Doin'