79 years, that's the average lifespan of an American citizen.
If you're in Japan, it's 83.
Canada, 82.
68 in India and Sierra Leone, 50.
79 years but not all of those are free.
If you sleep eight hours a day, you'll sleep for about a third of your life,
which cuts that down to fifty three years
If you're like 68 percent of American students,
you'll study from kindergarten to grade 12 and then head to college right after.
This takes 3 years worth of time from your life,
下载全新《每日英语听力》客户端,查看完整内容