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"For decades, communities of color have been underrepresented in clinical trials, faced greater barriers to getting vaccinated and harbored deeper distrust of a health care system," the Politico piece said.

"Funding in Beijing is too little, considering the population size, which exceeds 20 million, and its 4 million smokers," she said. "Per capita funding is far below many other countries and regions, such as Hong Kong."

"Grinding requires skill," Fan said. "You must grind steadily in a fixed direction so that the rice milk will not flow backward."

"Guangdong has great potential for the development of the petrochemical industry and the province's market for petrochemical products is huge," Ma said.

"Giving such a permission is to allow non-Beijing residents to drive to Beijing on business or leisure purposes. Driving a non-Beijing-licensed car permanently in the city has abused the lottery policy," said Zhang Rui, an associate professor of city planning at Beijing University of Civil Engineering and Architecture.