The judge should exercise the elucidation right to prevent delay and high cost in civil action, when the petition of the party is not sufficiency or appropriate.

• 民事诉讼中,法官在当事人的主张、请求、陈述不明确、不充分、不适当时,应当行使阐明权,以防止诉讼拖延、节约诉讼成本。