koo-khip高級

high-grade

high-grade; high-level; high-class; advanced; senior; high grade (grade 5 and grade 6 of primary school or secondary school)

education

English Wiktionary, “高級” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E9%AB%98%E7%B4%9A · confidence: Medium (Wiktionary, Hokkien)