考试前半年，他们就开始复习功课。的翻译：Half a year before the examination, they began to take lessons. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Six months before the exam, they began to revise for exams.

Half a year before the examination, they began to take lessons.

The test first half of the year, they start to review the schoolwork.

Six months before the examination, they started homework.

Half a year before the examination, they began to take lessons.