Code of Civil Procedure Article 474

The judgment of the court of third instance shall be based on oral argument, except where the court considers it unnecessary to conduct oral argument.The oral argument in the court of third instance shall be conducted by the attorneys appointed by the parties.The provisions of the first to the third paragraphs inclusive of Article 466-1, the first paragraph of Article 466-2 and Article 466-3 shall apply mutatis mutandis to the appointment of advocate by the appellee.
中文原文 民事訴訟法第474條
第三審之判決,應經言詞辯論為之。
但法院認為不必要時,不在此限。
第三審法院行言詞辯論時,應由兩造委任律師代理為之。
被上訴人委任訴訟代理人時,準用第四百六十六條之一第一項至第三項、第四百六十六條之二第一項及第四百六十六條之三之規定。

English translation for reference only; the Chinese text prevails. Not legal advice.