如果从第一条恐龙出现时就开始行走,那你现在就差不多要完成旅程了。详细分析如下:一光年(即光一年走过的距离,被用来衡量星际间的距离)大概有5.9兆英里。如果以20分钟1英里的中等速度行走,大概需要2.25亿年的时间来完成你的旅程(不包括停下来吃饭或是上洗手间的时间)。即使你 If you start walking when the first dinosaur appears, you are almost ready to finish the journey now. A detailed analysis is as follows: A light year (that is, the distance traveled by light year, was used to measure the distance between interstellar) about 5.9 trillion miles. If you walk at a moderate speed of 1 mile in 20 minutes, it will take about 225 million years to complete your journey (not including stopping to eat or to go to the bathroom). Even you