middle school 不是两个普通名词构成的专有名词.为什么前面不加the

middle school 不是两个普通名词构成的专有名词.为什么前面不加the middle school middle school I am in No.6 Middle School.I am in the No.6 Middle School.这两个哪个对? 英语中有没有senior middle school这个说法,高中不是senior high school吗? middle school 是中学, My Middle School Life middle school英语作文 no.5 middle school my middle school是什么意思 middle school days my middle school作文 No.1 middle school, middle school 造句中文 英语给你两个首字母填个空~Students take many co__________ when they are studying in middle school. in a middle school 还是 in middle school middle school还是Middle School 为什么?什么情况下用? in a middle school 还是in the middle school?