She couldn‘t understand why some people had to live their without shelter or enough food.Hannah started to think about how she could 38 ,but,of course,there is not a lot one five-year-old can do to solve(解决)the problem of homelessness。 Later ,w...
Kurzweil:For thousands of years, it actually served our needs to think linearly.If you think about our genes and our brains, they obviously evolved into their modern forms before advanced technology. If you saw something in the trees coming towards...
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