简单学习网在全国首创“互动封闭拟真课堂”。其独特之处在于：模拟真实课堂，基于智能错题本、课后练习和快速网络答疑，融名师系统讲授和“1对1”个别辅导为一体。旨在帮助全国的中学生“反复... 学校首页
represent vt. 代表
I represent all the classmates.
The body of one statue was found...
dating 现在分词，修饰remains
the customs dating from 1990
The tradit
ion dates from the time when his grandfather was young .
The castle dates from the 14th century.
The castle dates back to the 14th century.
Its missing head happened to be among remains of...
happen to 强调事情的偶然发生
I happen to have driven that kind of car.
He happened to find the ticket in his pocket.
