帮忙用英文翻译下、

他是个著名的专家。发明了许多定律。这些定律使世人很震惊。有一天。他正坐在树下。忽然掉下来了一个苹果。砸着了他。他忽然想到：为什么苹果只向地面落，而不向天上飞呢，他进行了实验研究、发现了地球引力。你们知道他是谁么？他是哪门科的专家么？

He is a famous expert and discovers many laws.These laws are shocked people in the world.One day,he was sitting under the tree.Suddenly an apple falled down and pounded him.He thought a question at once that why apple only fall on the earth instand of flying to the sky.Then he made experience and discovery,and he found gravity of the earth.Do you know who he is?Which branch does he do?

觉得还可以的话就给个满意哦 O(∩_∩)O谢谢！

He is a well-known experts. Invented a number of laws. These laws so that the world was shocked. One day. He is sitting under a tree. Suddenly fell off of an apple. Zazhe him. He suddenly thought: Why Apple is only down to the ground, rather than fly to the sky, his experimental research carried out and found the Earth's gravity. Do you know who he was? He is an expert which Menko Mody?