✔ 最佳答案
對不起,因為有一買家,話會買,但一直未收到他匯款,但期限到星期日,如果他冇回應的話,我先可以賣貨品給你
I'm sorry I cannot sell you the item at the moment because it is being reserved for another buyer pending payment by coming Sunday. In case he fails to meet the deadline, I will be able to make a deal with you.
上面的寫法是比較formal,希望對你有幫助。
at the moment = 現時
being reserved = 保留下
pending payment = 直至付款
deadline = 限期