Beijing lit the Olympic flame on Wednesday for the 2022 Winter Games. The kindling lamp of the torch adopts the appearance of the Gilt Bronze Human-Shaped Lamp made in the Western Han Dynasty, dated 172 BC, which embodies the Chinese wisdom of an environmentally friendly design thousands of years ago, but with modern techniques. Hong Wenming, the chief designer of Beijing 2022 Winter Olympics Torch Design Team, shares the points with CGTN.