帮我把这句中文翻译成英文，谢谢~高手进

This exam is a bit difficult. I am number 14 in my class. I got 342.5 scores for 4 courses and 600.7 for 7

the exam is a bit difficult,and I was the 14th toppest in the class,makeing a total mark 342.5 for four courses and 600.5 for seven courses

This exam is a bit tough. I am ranked 14th of my class. The total marks of four courses are 342.5 and are 600.7 of the seven courses.

这次考试有点难，我排全班第14名。
I ranked 14th in the class in the exams, which were a bit difficult.

四门我是342、5分，七门600、5分。
I got 342.5 points for the four exams and 600.5 points for the seven exams.

The examination is difficult.I`m the No.14 in the our class.
4 lessons is 342 score, 5 score .7 lessons is 600 score, 5 score.