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

Word Audio AI Test
前天 Vocabulary usage
后天 Vocabulary usage
一会儿 Vocabulary usage
日出 Vocabulary usage
日落 Vocabulary usage
半夜 Vocabulary usage
总是 Vocabulary usage
从来没 Vocabulary usage
前几天 Sentence breakdown
几年前 Sentence breakdown
Character breakdown
Character breakdown