Another option is to use Greek lower-case letters to represent such metavariable predicates. 另一種選擇是使用小寫希臘字母來表示這種元變數謂詞。
One of the bullae we found is blank, but two others bear impressions of Greek letters and Christian religious scenes. 我們找到的封印之一是空白的,但其他兩個壓有希臘字母和基督教的宗教圖景。