合同生效后十天内的翻译：Contract within ten days after 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

Within ten days after the commencement of the contract

Contract within ten days after the entry into force

The contract becomes effective latter in ten days

Within 10 days after entry into force of the contract

Contract within ten days after the entry into force