英语翻译GravityThe earth tries to pull everything down to its ce

英语翻译
Gravity
The earth tries to pull everything down to its centre.This pull is called the gravity.
Although we can’t see gravity,we can feel it.When you lift things up you have to pull against gravity.If you throw a pencil,gravity pulls it to the ground.As you stand on the earth.As a result,no matter where you stand on the earth,you don’t fall off.
There is gravity acting between any two objects in the universe.There is gravity between you and the earth.There is also gravity between you and the sun and between you and the people sitting next to you.Why do we fall down to the earth rather than to the sun or the people next to us?The gravity between us and the earth is larger than the gravity from any of these other objects.The gravity between two objects depends on the masses of the two objects and the distance between the centers of the two objects.
We don’t fall to the people next to us because they are much less massive than the earth.But the sun is more massive than the earth.Why don’t we fall to the sun?It is much farther away.As the distance between two objects gets large,the gravity between them gets smaller.But it never gets to zero; it just gets too small to matter.That’s to say no matter how far you get away from the earth,there will still be very small gravity between you and the earth.There is gravity everywhere.
用翻译器翻译 清在修改下，至少要说得过去，

题目：引力
地球试图把所有东西拉到自己的中心,这就是所谓的地球引力
尽管我们不能看见地球引力,我们可以感觉到它.当你要举起东西的时候,你必须要克服地球引力.
如果你扔铅笔,重力拉向地面.正如你在地球上的立场.因此,无论身在何处,你站在地球上,你不脱落.
有重力代理任何两个物体之间的宇宙中.人们之间的引力和地球.还有重力您与太阳之间,你和旁边的人给你.我们为什么要倒在地上,而不是太阳或旁边的人吗?我们之间的引力和地球大于重心从上述任何其他物体.两国之间的严重程度取决于物体群众的两个物体之间的距离中心的两个对象.
我们不属于未来的人给我们,因为他们更大规模的比地球.但更大规模的太阳比地球.我们为什么不属于太阳?这是很多更远.由于两个对象之间的距离会很大,它们之间的引力会较小.但是它从来没有得到为零,只是得到太小的问题.这就是说,无论多远你远离地球,仍然会有非常小的严重性你与地球.有重力无处不在.