An aerial drone photo taken on Dec. 25, 2024 shows a China-Europe freight train bound for Kazakhstan passing through Horgos railway port in Horgos, northwest China's Xinjiang Uygur Autonomous Region. Horgos Port, a major railway hub in Xinjiang, has facilitated 8,541 China-Europe freight train trips by Dec. 24 this year, according to statistics from the railway department of Horgos Port. (Photo by Wang Wenjie/Xinhua)

An aerial drone photo taken on Dec. 25, 2024 shows a China-Europe freight train bound for Kazakhstan passing through Horgos railway port in Horgos, northwest China's Xinjiang Uygur Autonomous Region. Horgos Port, a major railway hub in Xinjiang, has facilitated 8,541 China-Europe freight train trips by Dec. 24 this year, according to statistics from the railway department of Horgos Port. (Photo by Wang Wenjie/Xinhua)

An aerial drone photo taken on Dec. 25, 2024 shows a China-Europe freight train bound for Kazakhstan passing through Horgos railway port in Horgos, northwest China's Xinjiang Uygur Autonomous Region. Horgos Port, a major railway hub in Xinjiang, has facilitated 8,541 China-Europe freight train trips by Dec. 24 this year, according to statistics from the railway department of Horgos Port. (Photo by Wang Wenjie/Xinhua)

An aerial drone photo taken on Dec. 25, 2024 shows a China-Europe freight train bound for Kazakhstan passing through Horgos railway port in Horgos, northwest China's Xinjiang Uygur Autonomous Region. Horgos Port, a major railway hub in Xinjiang, has facilitated 8,541 China-Europe freight train trips by Dec. 24 this year, according to statistics from the railway department of Horgos Port. (Photo by Wang Wenjie/Xinhua)

An aerial drone photo taken on Dec. 25, 2024 shows a China-Europe freight train bound for Kazakhstan passing through Horgos railway port in Horgos, northwest China's Xinjiang Uygur Autonomous Region. Horgos Port, a major railway hub in Xinjiang, has facilitated 8,541 China-Europe freight train trips by Dec. 24 this year, according to statistics from the railway department of Horgos Port. (Photo by Wang Wenjie/Xinhua)

An aerial drone photo taken on Dec. 25, 2024 shows a China-Europe freight train bound for Kazakhstan passing through Horgos railway port in Horgos, northwest China's Xinjiang Uygur Autonomous Region. Horgos Port, a major railway hub in Xinjiang, has facilitated 8,541 China-Europe freight train trips by Dec. 24 this year, according to statistics from the railway department of Horgos Port. (Photo by Wang Wenjie/Xinhua)