A staff member checks a model of 5G+ Smart Factory at the first Global Digital Trade Expo in Hangzhou, east China's Zhejiang Province, Dec. 11, 2022. The 4-day expo kicked off here on Sunday. Around 800 leading digital trade companies from China and abroad will showcase their new products and technologies during the expo. (Xinhua/Xu Yu)

This photo taken on Dec. 11, 2022 shows the first Global Digital Trade Expo in Hangzhou, east China's Zhejiang Province. The 4-day expo kicked off here on Sunday. Around 800 leading digital trade companies from China and abroad will showcase their new products and technologies during the expo. (Xinhua/Xu Yu)

A visitor tries a digital learning service at the first Global Digital Trade Expo in Hangzhou, east China's Zhejiang Province, Dec. 11, 2022. The 4-day expo kicked off here on Sunday. Around 800 leading digital trade companies from China and abroad will showcase their new products and technologies during the expo. (Xinhua/Xu Yu)

People visit the first Global Digital Trade Expo in Hangzhou, east China's Zhejiang Province, Dec. 11, 2022. The 4-day expo kicked off here on Sunday. Around 800 leading digital trade companies from China and abroad will showcase their new products and technologies during the expo. (Xinhua/Xu Yu)

People visit the first Global Digital Trade Expo in Hangzhou, east China's Zhejiang Province, Dec. 11, 2022. The 4-day expo kicked off here on Sunday. Around 800 leading digital trade companies from China and abroad will showcase their new products and technologies during the expo. (Xinhua/Xu Yu)

This photo taken on Dec. 11, 2022 shows the first Global Digital Trade Expo in Hangzhou, east China's Zhejiang Province. The 4-day expo kicked off here on Sunday. Around 800 leading digital trade companies from China and abroad will showcase their new products and technologies during the expo. (Xinhua/Xu Yu)

A staff member operates a virtual driving simulator at the first Global Digital Trade Expo in Hangzhou, east China's Zhejiang Province, Dec. 11, 2022. The 4-day expo kicked off here on Sunday. Around 800 leading digital trade companies from China and abroad will showcase their new products and technologies during the expo. (Xinhua/Xu Yu)