初二四班：Class 2 Grade 8.
你在哪个班?我在四年级一班.
Which class are you in?I'm in Class 1,Grade 4.
我在二年级四班.
I am in Class 4 Grade 2.
经过五年的艰苦工作,他们完成了一套高质量的教材.该书分为六级,从小学4年级到初中3年级.
After five years of hard work they presented a high quality textbook,which consisted of six levels from grade4 to grade9.