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"E-commerce in China is dominated by aggregator platforms such as Alibaba, and the power dynamics skew in their favor," he added. "They are free to impose rules on promotions or create ad-hoc huge sales operations that brands must participate in if they want access to the pool of consumers."

"Early treatment can prevent the disease from getting worse and improve the quality of life of sufferers," he said.

"Economic cooperation and joint development of the Belt and Road are highlights of China-Arab cooperation," said Sun Degang, deputy director of Shanghai International Studies University's Middle East Studies Institute.

"Ensuring work safety is not a short-term task," he said. "It will take a long time for us to investigate various reasons behind the scenes, not just confined to training."

"Every country has laws and a duty to safeguard its national security and sovereignty. In New Zealand, examples include Intelligence and Security Act and Crimes Act 1961," said the SAR government spokesperson.