英语翻译首先谢谢你长期的信任,我也是诚心想与你继续做交易.因为P135和P129是我在别的供应商买的,因为我的仓库里这款已经缺货了.我不知道尺寸不标准,另外一件绣花的问题,我也没有发觉.总之是我的错误.这2件衣服的钱我将退款给你.之前的订单21件衣服你都收到了吧.另外11件已经用3个包裹发给你了,请注意查收.如果我们还有机会继续合作,我保证不会失误,会让你收到满意的商品.

First of all thank you for the long-term trust, I also sincerely wish to do business with you.
Because the P135 and P129 that I bought at other suppliers, because I have been out of this warehouse. I do not know the size of non-standard, while an embroidered, I did not notice it. All in all, my mistake. 2 pieces of clothing that I will refund your money.
Order 21 before you have received the right clothes.
Another 11 have been sent to you with three parcels, please note that check.
If we have the opportunity to continue to work together, I guarantee that no mistakes, and you will receive satisfactory goods.
Thank you

At first,i appreciate your long-term trust,and sincerely hope to let the cooperation be continuing.
As the type of P135 and P129 was out of storage, i bought them from other suppliers. It is my fault to be unaware of the size and the embroidery, the refund will be made.
Have the 21 pieces for the prior order arrived yet ? the other 11 ones have been sent to you in 3 packs, please check it.
i am looking forward to further cooperation and my guarantee for no more mistake and satisficing product.
Your Severely

几点说明：1.顾客首先关心的是他自己的钱.所以要先告诉他退钱,然后他才会有心情听你说继续合作的事.所以我把你关于合作的话挪到后面去了.2.一件衣服英文是 a piece of clothing.3.”我想与你做交易”和”希望你和我...

First of all, I would like to thank you for your long-term trust to us and I as well would love to continue our cooperation in the future.
I bought product P135 and P129 from other supplier since they are out of stock in my warehouse. I did not know that the size does fir your requirement. Another thing to note is that I was not aware of the embroidery problem either. I would take the responsibility and refund you these two cloths.
Have you received the cloths for order 21?
I have sent another 3 parcels to you of the other eleven cloths.
I promise not to make any mistake if we have another chance to cooperate.
Thanks