The United States is a major country issuing international currency, any instability in the value of the us currency is a big cause for concern for us.
美国作为国际货币的主要发行国，币值的不稳定引起我们很大的忧虑。
The United States is an issuing country of a major reserve currency. Any fluctuation of the value in the us currency is a big cause for concern for us.
美国作为国际货币的主要发行国，币值的不稳定引起我们很大的忧虑。
Heart disease is still a major health concern for Americans and those in other developed nations - it is actually the number one cause of death around the world.
心脏病仍然是美国和其他发达国家的主要健康问题——实际上是全球头号致死原因。
Heart disease is still a major health concern for Americans and those in other developed nations - it is actually the number one cause of death around the world.
心脏病仍然是美国和其他发达国家的主要健康问题——实际上是全球头号致死原因。
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