需经双方签字认可后生效的翻译：Be signed by both parties upon the approval by the entry into force 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Be signed by both parties enter into force after approval

Be signed by both parties upon the approval by the entry into force

Must sign the approval after both sides to become effective

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Be signed by both parties upon the approval by the entry into force