英语翻译这些句子

Question

10. 我们的新产品质地优良，我们对此感到自豪。这些新产品已大大改善了我们公司的形象。
11. 不言而喻，科学技术的发展对中国现代化是至关重要的。
12. 经过多次失败之后，他终于成功地发明了一种比已有的任何一种都好的自行车。
13. 数学教师知道，如果汤姆解不出这道难题，那么 很可能班上别的同学也解不出。
14. 科学家们已经做了无数实验，表明在改进人的行为方面，表扬比批评有效得多。
15. 我确实知道，现在有不少年轻人有一边做作业，一边听背景音乐的习惯。

Answer 1

我们的新产品质地优良，我们对此感到自豪。这些新产品已大大改善了我们公司的形象。
We are so proud of our high quality new products which helps a lot to improve the image of our company./The image of our company has been significatly improved.
不言而喻，科学技术的发展对中国现代化是至关重要的
Needless to say,the science and technology development plays a crucial role in China's modernization.
经过多次失败之后，他终于成功地发明了一种比已有的任何一种都好的自行车。
After numerous failures,he finally sucessfully invented a unique bicycle better than any other one in the world.
数学教师知道，如果汤姆解不出这道难题，那么 很可能班上别的同学也解不出。
The math teacher is clear that if Tom can't solve the difficult question,neither can others in this class.
科学家们已经做了无数实验，表明在改进人的行为方面，表扬比批评有效得多。
Scientist have conducted numerous experiements,which show (that )encouragement is better than criticism in improving human's behaviors.
我确实知道，现在有不少年轻人有一边做作业，一边听背景音乐的习惯。
I do know that there are a lot of young men having the habit of listening music while doing their homework.

Answer 2

这几句话翻译英文就是以下的了。。。

10. Our new products, good quality, we are proud of it. These new products have greatly improved the image of our company.
11. It is understood that science and technology development of China's modernization is essential.
12. After several failures, he finally succeeded in the invention of a more than any one had been a good bike.
13. Mathematics teachers know that if Tom could not is another difficult solution, then the most likely solution is also no other students in the class.
14. Scientists have made numerous experiments show that improving the people's behavior, the praise than criticism much more effective.
15. I do know that there are a lot of young people while doing homework while listening to background music habits.