原告可以放弃或者变更诉讼请求。

The plaintiff may waive or change the claim.

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变更诉讼请求是当事人的一项重要诉讼权利。

Change of Litigious claim is an important procedural right of parties.

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当事人增加、变更诉讼请求或者提起反诉的，应当在举证期限届满前提出。

In case any party makes additional or changes allegations or lodges a counterclaim, he shall do so prior to the expiration of the time period for producing evidences.

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