Frank.P

1.
        Since they fled religious persecution in Iran a millennium ago, they've distinguished themselves in many sectors of Indian society.
2.
        Ransom Mayer 和Boris Worm 两位研究者想要研究的是事情改变的有多快。
3.1
        If you cried for missing the sun, That means you will also miss the stars.
3.2
        China has the largest and fastest high-speed rail system in the world. And the speed of the train will continue to increase, more and more cities. The high-speed rail system reduces the time for travelling. Compare to the aeroplanes, the high-speed rail system is more on time, because it didn't take concern of weather conditions and traffic controls. The high-speed rail system changes Chinese peoples living habit. Nowadays, it is useful for business and the trip, some of the young men choose to stay at another city and on and off duty by the high-speed rail system.

hiahia

注意动词修饰的东西，主动被动用法要再复习下，加油！