The studies indicated that the main compositions of Gelatina Nigra are protein,polypeptides,animo acids,mental elements,dermatan sulfate,biotic acids and so on.是什么意思_The studies indicated that the main compositions of Gelatina Nigra are protein,polypeptides,animo acids,mental elements,dermatan sulfate,biotic acids and so on.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句