在罗马帝国，从盐矿运盐到罗马的道路被视为最重要的道路之一。

In the Roman Empire, one of the most important roads was the one that carried salt from the salt mines to Rome.

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奈良美智被视为最重要的日本现代流行艺术家之一，其作品曾在全世界的画廊和展览中展出。

Nara is considered one of the most essential contemporary pop artist of Japan whose works are exhibited in galleries and exhibitions of an international scale.

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美国是全球最大的经济体，拥有流动性最强的金融市场，管理着全球最重要的储备货币，因此，美国国债已经被视为一项全球性的无风险资产。

Since America is the world's largest economy, has the most liquid financial markets and operates the world's premier reserve currency, the Treasury bond has been seen as the global risk-free asset.

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