民事诉之撤回制度是民事诉讼中的一项重要制度，是民事处分原则和程序主体性原则的充分体现。

Lawsuit withdrawal is an important system in civil litigation, and embodies disposal principle and principle of maintaining procedural subjectivity.

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无权处分是民事法律体系的一个重要环节。

Unqualified disposition is an important part of the civil law system.

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在当事人主义诉讼模式下，当事人乃为民事诉讼之程序主体，享有辩论权和处分权，其行使权利的途径主要须经由一定的诉讼行为。

In the adversary litigation pattern, the parties are the subject of civil procedure, who are entitled to argue and dispose of their own benefit through some suit actions.

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