1.You can learn lot of knowledge about United States even without physically travel to the certain locations.
即便是足不出户，也能从中获取大量知识，丰富对美国的了解。
2.Exist of different opinions values much, and you can learn lot from other aspects.
不同的观点的共存是很有价值的，你也可以从事物的另一个方面去了解一些东西。
3.This is a good . . . in this code can also learn lot of things?
这是个不错的代码…在这也可以学到好多好多的东西呢？。