求翻译：乙方如在协议期第一年末或下一年度取消本协议中某项维护服务条款，应提前一个月以书面形式通知甲方，并经双方协议后方可生效。是什么意思？

B in the agreement of the first end of the year or next year, to cancel this Agreement, such as a particular maintenance terms of service, one month in advance written notice to the Party, and only take effect after mutual agreement.

Party B such as in the first term of the agreement or in the next year the a maintenance agreement in terms of service, shall be one month in advance in writing by the party, and the parties to the Agreement shall be effective.

The second party like cancels in this agreement in the agreement time first year's end or the next year some maintenance service term, should ahead of time a month by the written form notice the party of the first part, and only then becomes effective after the bilateral agreement.

Str first or next year at the end of the agreement period to cancel a maintenance service provision in this agreement should be one month in advance in writing to the customer, and by mutual agreement shall be effective.

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