We have been here for about five days and I have to leave now. 我们已经在这里五天了，必须得走了。

　　Ok! You know you're always welcome here. 随时欢迎你们。

　　Did you enjoy your stay? 你们这几天过得怎么样？

　　Yes,we have a very pleasant time. 很愉快.

　　Thank you for being so nice for us. 谢谢你们照顾得这么周到

　　It's our pleasure.  我们应该做的。

　　And is there anything else we can do for you before you leave here? 在你们走之前还有什么需要我们做吗？

　　No.thanks. You've done a lot for us. 不用了，谢谢！你们已经为我们做了很多了。

　　Thank you for everything. 感谢你们所做的一切。

　　Don't mention it.  不客气。

　　Oh, this is a small gift for you. 对了，这是一份送给你们的小礼物。！

　　Oh! Thank you! It's very kind of you. 谢谢！你们太客气了！

　　We hope you could visit our company again. 我们希望你们能再次前来参观。

　　We're sure we will.  我们一定来。

　　And welcome to our corporation next year. 也欢迎你们明年来我们公司。

　　We're expecting you. 期待你们的来访。

　　Ok! We'll definitely go to visit your company. 好的，我们一定去拜访。