并列题名：Norms and Variants Norms and Variants 并列题名：Songs and chants 并列题名：Order and variation 并列题名：Vowels and consonants 并列题名：Flowers and plants 并列题名：Me and variations 并列题名：Norms and the law 并列题名：Pieces and ornamants 并列题名：Contradiction and variance