Workers in the South California Flower Market in Los Angeles are busy buying and preparing for Valentine's Day next Monday.The crown disease outbreak in 2020 has greatly hit the Flower market in California. The sales of 225 flower farms in California plummeted 85 % from mid -March 2020 to early April 2020.

The Sino -US trade war has continued to make a global supply chain challenge. The crown disease epidemic has caused the shortage of people from all walks of life, making it difficult for the supply chain to operate steadily. Today, the Ukraine crisis may intensify this problem.The truck demonstration spread from Canada to the United States has also affected the economy, supply chain and people's lives of the United States and Canada.Social media also rumored that the US truck driver plans to support the anti -crown vaccine demonstration of Canadian truck drivers, making US authorities worry that the main roads connecting cities in various places will be seriously affected.(AFP)