Nowadays, the burden of middle school students is heavy, because they have to study at school all day long .如今，中学生的负担很重，因为他们一整天都要在学校学习。
After class, their parents take them ...
An Activity This afternoon my classmates and I went to help the drivers clean the buses. It was very cold and windy.But we didn't mind, and worked hard. Some of us cleaned the windows, and others ...
