pro-form編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看pro-formpro-form — 名詞名詞1. a word that can replace a phrase or clause1.名詞釋義代形式a word that can replace a phrase or clause例句In grammar, a pro-form like 'so' can replace a whole clause.