求翻译：我们已接到你方5月19日的来信，要求我们以承兑交单方式发运你方一批茶具。众所周知，我们的货款必须以保兑的、不可撤销的、凭即期汇票支付的信用证付款。因此，我们很难接受你们这一要求。但鉴于你方尽力推销我方产品的良好愿望，我们破例接受60天即期汇票的信用证，我们相信我们的这一特别照顾一定能使你方做出有利的决定。是什么意思？

We have received your letter of May 19, Against Acceptance ship you a number of tea. We all know, the money must be to protect against an irrevocable, letter of credit payment by draft at sight. Therefore, it is difficult to accept your request. But as you try to sell the good wishes of our products

We have received your 5, 19, a letter from us to acceptance to the way you shipped tea party a lot. It is well known that our money must be in the US dollar, irrevocable, paid by the bill of credit card payments. Therefore, we find it difficult to accept your request. However, in view of your party

We have received your letter of May 19, we shipped to document against acceptance of your tea set. As we all know, our payment must be confirmed, irrevocable, by sight payment letter of credit payments. Therefore, it is difficult to accept your request. But in view of the good wishes of you trying t