Coptic was written in a modified form of the Greek alphabet, with seven signs added from the Demotic script for sounds that did not occur in Greek. 科普特语采用希腊字母,并增加七个借自埃及通俗文字的字母。
Another option is to use Greek lower-case letters to represent such metavariable predicates. 另一种选择是使用小写希腊字母来表示这种元变量谓词。