叹为观止Amazing分毫不差Banhaobucha一丝不苟Meticulously中国人的发展真快啊!连我都不敢想这是他们中国的工程师创造的宏伟业绩.连我国著名的工程师都不感轻易尝试的艰巨工程,詹天佑先生他居然做得分毫不差,一丝不苟.真是让人叹为观止呀!这能不让外国的工程师羡慕吗?不,简直就是嫉妒.China's development really Kuaia! I do not even to think this is their Chinese engineers to create a magnificent performance. Even well-known engineers are not easy to sense the daunting project, Zhan Tianyou, he had done Banhaobucha, meticulous . people really amazing! This can not help foreign engineers envy? No, it is jealousy.I Gaussian math would be as sharp as if Chenjingrun as careful, but I like cards as great now Seoul. Beautiful characters that I will be spread around the world, such as clear as water, as all the beautiful things Qin Permeability people, a unique style exclusive World iceberg my English will say that the United States than all the broadcasters are also potential in the near future I am sure that I can access harvard university students, and receive a full scholarship to my parents for me proud as I am proud to China

我很菜  尽最大力了

a cclaim as the peak of perfection  意思是赞美 感叹到极致 顶峰

meticulosity  是一丝不苟 

envy,green-eyed monster,grudge,jealousness  这些有些是口语用的多 有的我也没见过
第一段：Chinese's development is really quick! I do not dare to think that this is the grand achievement which their China's engineer creates. Our country renowned engineers do not feel the arduous project which attempts easily, Mr. Zhan Tianyou he do unexpectedly exactly right, meticulous. Really lets the human praise to the heavens! This can not let the foreign country engineer envies? No, is simply envies. 

第二段：my mathematics like Gauss will be keen, if Chen Jingrun is meticulous, but my like card flute is great. I that exquisite writing will spread over the world, if the running water is limpid, if all beautiful things seep thoroughly the will of the people, monopolizes world one jiao by the unique style. My English will say compared to all American radio announcers also. In the near future I believed firmly that I may enter harvard university to go study, and obtains the sum total scholarship to let my parents let China for me be arrogant arrogantly for me.

I tried my best to help you and there are my answers to your questions:

the first sentence is:

What the fast development China has!Even i can not believe all the miracles are created by Chinese enginers.As famous engineers in my country,they dare not try to taste the formidable projects.Mr Zhantianyou did it metiallosity and let it became perfect.All acclaimed as the peak of perfection.The foreign engineers will admire this,aren't they?of course,even jealous.

the second sentence is :

Of course,my math ability will acuity like Gauss and meticulous like Chenjingrun,If turn to me,i will be as great as Cardel.
My gorgeous words would flourished around the world.Like other wonderful things,they will penetrate deeply into people's heart.Using unique style,they will be exclusive in the world.My English will become better than the most famous American broadcaster and i am sure i can enter to the Harvard University in my future and gain the scholarship.My parents will feel proud of me as well as China,my lovely country!

Hope you can like it,and i am not professional,but i tried my best!so hope we can exchange our idea in the future!

第一句是： 

如何快速发展，中国！即使我不能相信所有的奇迹，是中国人制造的enginers.as著名工程师在我的国家，他们也不敢尝试浅尝厉害projects.mr zhantianyou没有metiallosity让它成为perfect.all被誉为高峰perfection.the外籍工程师将佩服这一点，不是吗？当然，即使嫉妒。 

第二句是： 

当然，我的数学能力就会像视力高斯细致chenjingrun一样，如果谈的话，我会被作为大cardel 。 
我的华丽的话，将兴盛周围world.like其他美好的事物，他们将深入到人们的heart.using独特的风格，他们将独家在world.my英语将成为优于最有名的美国广播公司，我深信我可以进入哈佛大学，在今后赢得scholarship.my家长会觉得我为荣，以及中国，我可爱的国家！ 

希望你能喜欢，我不是专业的，但我尝试我的最好的！所以希望我们可以交流我们的理念，在未来！