【正确答案】Dear guests, ladies and gentlemen, The Global Seminar on Organic Food and Sustainable Agriculture opens today. I would like to, on behalf of the Xi'an Municipal Government, extend our warm welcome to all guests here. With the improvement of living standards, people are paying more attention to food safety, food quality and nutrition. The seminar will significantly boost the development of organic food industry in your countries. Xi'an and its surrounding areas are rich in agriculture resources. In recent years, we have attached great importance to the development of organic food and made satisfactory achievements. We will learn from other countries in this regard and make further contribution to improving people's life. Finally, I wish all guests a pleasant stay here in Xi'an and the seminar a great success. Thank you all.