求一句地道的翻译，大家在暑期结束的模拟考试中都提高了超过四分

这才是翻译！
Everybody has improved by over four scores in the mock examination which was held after the summer vacation.

Have improved in everybody mock exam being over in summer vacation time exceed four mark

你好 翻译如下：

You all improve yourselves by more than 4 scores among the mock examination after summer vocation.

是表扬学生吧 这句最有气势

At the end of the summer everyone's mock examinations have increased more than a quarter