WHEN was the Beijing Horticultural Exposition held?
访客7个月前
Beijing Horticultural Exposition is an important event in the field of horticulture in China, which is held every two years. The first session was held in 2006. In recent years, it has been held in 2006, 2008, 2010 and September 2012. According to historical rules, the next one is expected to be held in 2022 or 2023....