Chinese swimmer Sun Yang (L front) shakes hands with an elderly man at a day care center for senior citizens in Macao, south China, Aug. 31, 2016. Delegation of Chinese mainland Olympians arrived in Macao Monday afternoon, embarking a four-day visit here.

Chinese Olympians play games with Children at a nursery in Macao, south China, Aug. 31, 2016. Delegation of Chinese mainland Olympians arrived in Macao Monday afternoon, embarking a four-day visit here.

An elderly man performs dancing to welcome Chinese Olympians at a day care center for senior citizens in Macao, south China, Aug. 31, 2016. Delegation of Chinese mainland Olympians arrived in Macao Monday afternoon, embarking a four-day visit here.

Chinese diving athlete Wu Minxia (R front) dances with a member of a health center of Fuhong Society of Macao in Macao, south China, Aug. 31, 2016. Delegation of Chinese mainland Olympians arrived in Macao Monday afternoon, embarking a four-day visit here.

Chinese diving athletes Shi Tingmao, Wu Minxia and swimmer Sun Yang (from L to R, back) dance with youth at a health center of Fuhong Society of Macao in Macao, south China, Aug. 31, 2016. Delegation of Chinese mainland Olympians arrived in Macao Monday afternoon, embarking a four-day visit here.

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