The Yunnan Chenglong Dali branch establishment ceremony and the Zhonghua骏Jiet Wagon appraisal meeting was held on March 21st, with the theme of "Free•Enjoy Life", at Cangshan Mountain in Xiaguan City, Dali. (Note: "骏捷" is translated phonetically as "Junjie" since it appears to be a specific model name of a car. It can also be directly translated as "Gallop Agile".)
For better context and accuracy, here's an improved version:
On March 21st, the establishment ceremony of Yunnan Chenglong's Dali branch and the Zhonghua Junjie Wagon appraisal meeting was held under the theme of "Live Freely • Enjoy Life" at Cangshan Mountain in Xiaguan, Dali.