美国以其广阔的能力，能够在其境内容纳地球上所有的人口。
The United States, in their expansive capacity, are capable of containing within their limits the whole population of the earth.
"The best advice I can give is just to be yourself and have fun."
一个人的出身并不重要，重要的是他成长为什么样的人。
The rise of China and other authoritarian states challenges the idea that liberal democracy is the only viable political system.