ethnics什么意思解释？

Philadelphia may be known as home of the establishment and ethnics.费城也许是名门和族裔之乡.The theory support of ethnics is matter - element theory and extension set theory.它的理论支柱是物元理论和可拓集合理论,其逻辑细胞则是物元.The white ethnics argue that ...

ethnics的音标：ethnics的英式发音音标为：['eθnɪks]ethnics的美式发音音标为：['eθnɪks]...