<正>HONGJIANG City is little known in modern times,but historically it was a key port and bus- tling trade center full of riches,spendthrift lifestyles and opium dens.Located in a mountainous zone in the southern province of Hunan,Hong- jiang's role as an important trade hub stretches back to antiquity.More than 3,000 years ago it lay on the trade route between China's interior and the Indian and Arabic Oceans,and the Red and