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"Coming from a developing country, you normally see people confined within their villages and don't know how to take advantage of global trade," Prompoj said.

"Chinese railway workers sacrificed more than one life per mile of track. This was the buried history of blood and tears," Choi said emotionally.

"China's AI education development has entered a new phase. A great number of students yearn for high-quality education," Li said. "For an education company, the key to winning the game is that it should be able to use big data and AI to truly and greatly improve students' efficiency and capability.

"Compared with traditional retail business, tailored production will have no pressure of overstocked products. Besides, the demand is continuous," he said.

"Collecting materials, such as product advertising, transaction messages and chat records with sellers as evidence is also a necessity," she added.