It's one of the longest and deepest limestone caves not just in the country but in the world.

它不仅是美国最长最深的石灰岩洞穴之一，也是世界上最长最深的石灰岩洞穴之一。

youdao

According to the French government, the country is the number one tourist destination in the world, and tourism is extremely important to the French economy.

据法国政府表示，该国是世界上第一大旅游目的地，而且旅游业对法国经济非常重要。

youdao

A health crisis in one country can impact livelihoods and economies in many parts of the world.

一个国家的卫生危机可以影响到世界上许多地方的生计和经济。

youdao

Still,this would only mean that there are community-level outbreaks in at least one other country in a different area of the world.

VOA: special.2009.05.06

The country has one of the best earthquake early warning systems in the world.

VOA: special.2011.03.21

Such demonstrations have become frequent in a country with one of the widest gaps between rich and poor in the world.

VOA: standard.2010.03.21

It was the first signal that Labour was re-engaging with the world and rejecting Bennite socialism in one country.

ECONOMIST: Bagehot

Mr Serra likes to say that Brazil holds three negative world records: it has the highest interest rates in the world, the heaviest tax burden of any emerging country and one of the lowest rates of public investment.

ECONOMIST: Brazil's presidential campaign

In 1969, NASA gave the country and the world one of the most iconic moments in the history of television when it broadcast the moon landing.

FORBES: Curiosity Rover Team Lives on Mars Time, Compares Rover to Pokemon