我们(很)感激你为确保活动顺利进行所作的贡献。

We (do) appreciate the contribution you made to ensure the smooth running of the activity.

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据发言人透露：“筹备工作正顺利进行，我们将确保国庆60周年庆祝活动成功举办。”

"Preparation are going on smoothly," the spokesperson said. "We will make sure of a successful celebration."

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同时，它也赋予和限制了合同双方当事人的权利和义务，确保建筑活动顺利进行，保质保量的完成目标。

At the same time, it also gives the contract and limit the rights and obligations of the parties to ensure the smooth progress of construction activities, quality and quantity objectives.

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