翻译"先请允许我代表---,欢迎你的到来

first, please allow me to say welcome to you in the name of /on behalf of...
楼上的说法太Chinglish了。
另外也不需要说请允许我怎样，不符合英美人的表达习惯。虽然按字面可以这样翻译，但最好说I'd like to say welcome to you in the name of...

First, please allow me to represent ......welcome you to.....

First of all,please permit me on behalf of---,welcome your coming.

Allow me to represent~~~~~~~~~welcome.

Frist , please allow me to say welcome to you on behalf of .........