重 (zhòng): This character means “heavy,” “serious,” or “important.” Here, it signifies “key” or “of primary importance.”
点 (diǎn): This character means “point,” “dot,” or “location.”
中 (zhōng): This character means “middle” or “center.”
学 (xué): This character means “to study” or “school.”
When combined, `重点 (zhòngdiǎn)` means “key point” or “focus.” `中学 (zhōngxué)` is the standard word for “middle school” or “secondary school.” Therefore, `重点中学` literally translates to a “key point school”—a school that is a focal point of the educational system's resources and efforts.