Color coding: Lesson Vocabulary  Supplementary vocabulary Single character (not used alone) Single character word 

Word Audio AI Test
上课 Vocabulary usage
下课 Vocabulary usage
回家 Vocabulary usage
安静 Vocabulary usage
举手 Vocabulary usage
专心 Vocabulary usage
功课 Vocabulary usage
考试 Vocabulary usage
Character breakdown
Character breakdown
Character breakdown
Character breakdown
Character breakdown