本协议书自甲乙双方签字盖章之日起生效的翻译：Since both parties signed and sealed this agreement as of the date of 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

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Since both parties signed and sealed this agreement as of the date of entry into force

This agreement signs and seals the date activation from armor second grade both sides

Since both parties sign and seal this Agreement shall enter into force on the date

Since both parties signed and sealed this agreement as of the date of entry into force