People walk on a street in Seoul, South Korea, Jan. 9, 2025. South Korea witnessed a sharp drop in temperature, with the lowest temperature in Seoul reaching minus 17 degrees Celsius. (Photo by Park Jintaek/Xinhua)

People wearing thick clothes are pictured on a street in Seoul, South Korea, Jan. 9, 2025. South Korea witnessed a sharp drop in temperature, with the lowest temperature in Seoul reaching minus 17 degrees Celsius. (Photo by Park Jintaek/Xinhua)

People walk on a street in Seoul, South Korea, Jan. 9, 2025. South Korea witnessed a sharp drop in temperature, with the lowest temperature in Seoul reaching minus 17 degrees Celsius. (Photo by Park Jintaek/Xinhua)

People walk on a street in Seoul, South Korea, Jan. 9, 2025. South Korea witnessed a sharp drop in temperature, with the lowest temperature in Seoul reaching minus 17 degrees Celsius. (Photo by Park Jintaek/Xinhua)