良 ㄌㄧㄤ ˊ liáng 渚 ㄓㄨ ˇ zhǔ 文 ㄨㄣ ˊ wén 化 ㄏㄨㄚ ˋ huà Liangzhu (c. 3400-2250 BC), neolithic culture of Changjiang delta