Translate the following sentences into Chinese.Thank you for your e-mail d.d. Sept 1st, but we are so surprised to note that you still demand payment against T/T. After long years of satisfactory trading we feel that we are entitled to favourable terms. Most of our suppliers are drawing on us at 90days after sight documents against acceptance, and we should be grateful if you could grant us the same terms.We are looking forward to your prompt reply.