如今在一些发达国家——主要是日本和西欧国家，老年人占了总人口的百分之二十五。
In parts of the rich world, mainly Japan and western Europe, that age group already makes up nearly a quarter of the population.
在美国和其他国家的科学家一直在努力解释蜜蜂神秘失踪。如今，一项新的研究表明，一些病毒可能共同采取行动。
Scientists in the United States and other countries have been working to explain the mysterious disappearances of bees. Now, a new study suggests that several viruses may act together.
在一些国家，如今人们可以买到来自于世界各地的食物。
In some countries, it is now possible for people to buy a wide variety of foods transported from all over the world.
如今，由于在交通和通讯上科学技术的改善，一些国家的人们可以选择在他们所想要的任何地点工作生活，你认为这是一件比较好的事情吗？
Now because of the improved technology in communication and transport, people in some countries can choose to live and work anywhere they want. Do you think it is good?
如今，由于在交通和通讯上科学技术的改善，一些国家的人们可以选择在他们所想要的任何地点工作生活，你认为这是一件比较好的事情吗？
Now because of the improved technology in communication and transport, people in some countries can choose to live and work anywhere they want. Do you think it is good?
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