双喜哥的回答：

Over the next few decades, a new understanding of space and time is a revolution in our outlook on universe.. Ancient on basically the same, already exists and will continue to exist infinitely long universe concept, movement, expansion and appears to be from a finite past started and will be limited in the future with the idea of the end of the universe is replaced. This revolution is the next chapter.. It was just a few years later that I studied the starting point of theoretical physics.. Roger Penrose and I point out that Einstein's general theory of relativity can be inferred that the universe must have a beginning and an end

伊泽瑞尔的回答：

less pressure makes better life hello, my classmates! pressure is a serious problem in today’s world. most students in our class are under too much pressure. some students can’t get on well with their classmates, while others may worry about their exams too much. i was always under pressure, too. my parents wanted me to be the top student in my class. they always sent me to all kinds of after-classes on weekends. i had a talk with my parents and told them i had done my best. finally, they understood me. in this way, i feel less stressed out so that i can concentrate more on my studies. less pressure makes better life. thank you!