Cambodian King Norodom Sihamoni (C-R) and former Queen Norodom Monineath Sihanouk (C-L) disembark from a plane at Phnom Penh International Airport in Phnom Penh, Cambodia, on Nov. 7, 2020. Cambodian King Norodom Sihamoni and his mother, former Queen Norodom Monineath Sihanouk, returned home on Saturday after spending a month in Beijing, capital of China, for regular medical checkups and treatments. (Photos: Xinhua)

Former Cambodian Queen Norodom Monineath Sihanouk (Front) waves upon her arrival at Phnom Penh International Airport in Phnom Penh, Cambodia, on Nov. 7, 2020. Cambodian King Norodom Sihamoni and his mother, former Queen Norodom Monineath Sihanouk, returned home on Saturday after spending a month in Beijing, capital of China, for regular medical checkups and treatments.

Chinese Ambassador to Cambodia Wang Wentian (2nd L) greets Cambodian King Norodom Sihamoni (R, Front) at Phnom Penh International Airport in Phnom Penh, Cambodia, on Nov. 7, 2020. Cambodian King Norodom Sihamoni and his mother, former Queen Norodom Monineath Sihanouk, returned home on Saturday after spending a month in Beijing, capital of China, for regular medical checkups and treatments.