Hi Frida, it’s xxx, how are you. I hope you are not too busy at the moment and I want to talk you my visit next month. You know we’d talked about the 13tb, I’m afraid it’s not going to work out because of deadlines here. I don't suppose we could put it back a week or so would we? give me a ring and let me know ,thanks

I　don't suppose we could put it back a week or so would we?

我假设我们不能推迟一周大约，我们能吗?还是我们假设推迟一周行吗？

[i want to talk you my visit next month]
I would like to talk to you about my visit to XXX next month.

[its not going to work out]
it no longer works for me
work out是鍛煉的意思 work是“行 ”

[because of deadline here]
首先 THE deadline
其次 這句話 其實沒有說清楚 不明白你想表達什麽

[put it back]
put it off

[i dont suppose we could put if off a week or so, would we?]
你想說 你覺得 不大可能會推遲1個禮拜這麽久？
還是說 你想推遲1個禮拜
i would like to put off my trip BY a week or so

good luck