1.Please accept our thanks for the trouble you have taken.

　　有勞貴方，不勝感激。

　　2.We are obliged to thank you for your kind attention in this matter.

　　不勝感激貴方對(duì)此事的關(guān)照。

　　3.We tender you our sincere thanks for your generous treatment of us in this affair.

　　對(duì)貴方在此事中的慷慨之舉，深表感謝。

　　4.Allow us to thank you for the kindness extended to us.

　　對(duì)貴方之盛情，不勝感謝。

　　5.We thank you for the special care you have given to the matter.

　　貴方對(duì)此悉心關(guān)照，不勝感激。

　　6.We should be grateful for your trial order.

　　如承試訂貨，不勝感激。

　　7.We should be grateful for your furnishing us details of your requirements.

　　如承賜示具體要求，不勝感激。