繁体 traditional:

听 listen:

语法 grammar: 专名 Proper Noun

笔记 notes: Chu was a kingdom in what is now central and southern China during the Spring and Autumn period (722-481 BC) and Warring States Period (481-221 BC)

概念 concept: 王国 Kingdom

上概念 parent concept: 战国 (Warring States Period)

话题 topic: 历史 (History)