阔筋膜张肌皮瓣:帮忙翻译几个句子，英语好的请进

It goes without saying that the youths' education is crucial to the future of a country.

If you work hard ,you can figure this problem out sooner of later.

His devotion to anthropology impresses me deeply.

His math is not so good ,whereas when it comes to PE,he is the best in his class.

1> Is obvious, the person of the youth education for a nation is to go to pass in the future important.
2> As long as you work hard continuously, you will solve this hard nut to crack sooner or later of.
3> He concentrates on the mankind the research science spirit leaves very deep influence for me
The not good egg of his mathematics of .
4> Wants to make reference to the athletics.He is all a class best

2楼的翻得工整，比较符合英语书上的。

1楼看了个Is obvious，就知道不是机器翻得就是水平没的。

楼主选2楼吧，
另外第三句建议加上His spirit of devotion to ....这样更尊重原意

1.It means the younth education is very important to the country.
2.If you keep on working hard,you will solve this problem sooner or later.
4.His math is not good,but he is the best at PEin his class.

二楼的比较好，不过有个笔误，第二句结尾应该是sooner or later, 不要写成 of.