関連ワード:  what is communication ai class 9    what is communication skills in ai class 9    what is communication cycle class 9 ai    what is verbal communication class 9 ai    what is visual communication class 9 ai    what is encoding in communication class 9 ai    what is non verbal communication class 9 ai    what is the importance of communication class 9 ai    what is the importance of communication skills class 9 ai    what is the significance of visual communication class 9 ai