Your experience in this field makes us believe that you can be a good agent.

你们在该领域的经验让我们相信你们会成为一个很好的代理。

Your experience in this field makes us believe that you can be a good agent.

你们在该领域的经验让我们相信你们会成为一个很好的代理。

Yes, we really have the experience.

是的，我们的确有这方面的经验。

We regret that we are unable to accept your proposal.

很遗憾我们不能接受你方担任我方代理的提议。

Mr. Wang, we regret that we are unable to accept your proposal.

王先生，很遗憾我们不能接受你方担任我方代理的提议。

When the time is coming, please take us into consideration.

如果时机成熟了，请考虑我们。