Lesson 19 Tired and thirsty 又累又渴语音: 鼻音: m n m mapjammustmumn nosenotpenmanwomanten -ngthingstrongkingfingerbringsongsingingeg. Songs for singing.eg. Bells for ringing.eg. I bring these things.n thin thingban bangsun sungNew Words and expressions 生词和短语 matter n. 事情children n. 孩子们(ch