求翻译：学生年龄为12-18岁，分为从初一至初三、高一至高三，共6个年级36个教学班，学生共有1200人，属于北京市非常标准的一所完全中学。是什么意思？

Students aged 12-18 years, divided into a total of 1,200 people, belonging to the Beijing pretty standard from the first three days, a supreme three, a total of six Grade 36 classes, students of a complete secondary school.

For students ages 12 - 18 years old, is from the early beginning to a 3, a 3 to a high-grade, and a total of 6 classes of 36 students, a total of 1,200 persons, belonging to the municipality is very standard secondary school is the one.

The student age is 12-18 year old, divides into high from the first day to the third day, one to high three, the altogether 6 grade 36 instructors classes, the student altogether has 1200 people, belongs to a Beijing extremely standard complete middle school.

Students aged 12-18 years, divided into from grade to grade nine, one to three, a total of 36 class 6 grade students there were 1200 people, belonging to the very standard of a full secondary school in Beijing.

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