求翻译：我帮他学习数学，因为他的数学很糟糕，每次考试都拖其他科目成绩的后退。经过一个多月的不断努力，他的数学成绩有了很大的进步，而且还排在班级的前几名。是什么意思？

I helped him to learn math, because he's bad at math, every test drag the retreat of other subjects. After more than a month of continuous efforts, have made great progress in his math, but also came in the top of the class.

I can help him to learn math, because math is very bad for him, every test and other subjects of the back. After more than a month of continuous efforts of the mathematical results, he has a lot of progress, but also in the class.

I help him to study mathematics, because his mathematics is very bad, each time takes a test all tows other subject result the backlash.After more than a month unceasing endeavor, his mathematics result had the very big progress, moreover also arranges at class's and grade's first several.

I helped him to study mathematics, because his math is bad, each exam is dragged back for other grades. After more than a month of continuous efforts, his mathematical achievements there is a great deal of progress, but also in the front row of class.

正在翻译，请等待...