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Around 70 percent of the city's groundwater is contaminated by waste and chemicals from leaky household septic tanks and industrial plants that can cause diarrhea or other illnesses if the water is not boiled or purified properly.

Apps offering lifestyle services such as food delivery, shopping, education and ticket sales will be major targets in this crackdown.

Artificial intelligence is playing an active part in helping the world contain the COVID-19 pandemic, which will accelerate its use in healthcare, industrial production, and other sectors, company executives said.

As China Internet Network Information Center (CNNIC) reported, the number of Chinese netizens reached 904 million by March this year, with 532 million online game players. The amount of mobile game players hit 529 million, increasing 70.14 million compared to the end of 2018.

Around 2003, Chen's only son died of disease, and his daughter-in-law abandoned the poverty-stricken family and left without even a goodbye according to the 71-year-old.