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

Word Audio AI Test
卫生纸 Vocabulary usage
卫生 Vocabulary usage
Character breakdown
洗手台 Vocabulary usage
肥皂 Vocabulary usage
毛巾 Vocabulary usage
镜子 Vocabulary usage
洗澡 Vocabulary usage
上面 Vocabulary usage
Character breakdown
Character breakdown
Character breakdown