As the biggest rival of Douyin, the domestic version of TikTok in China, Chinese video app company Kuaishou officially started trading today. It raised $5.4 billion in its Hong Kong IPO, making it the world's biggest internet company IPO since Uber's $8.1 billion debut in 2019, and is valued at nearly $61 billion. What's driving the jubilation, and caution, of the world's second largest short-video platform? To help us understand, CGTN's Xia Cheng gives us a quick hand.