Blossoming flowers are seen along a sidewalk in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen along a street in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen at a community in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen at a community in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen at a community in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen along a path in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen at a community in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen along a road in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen at a community in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)

Blossoming flowers are seen at a community in Xishan District in Kunming, southwest China's Yunnan Province, Dec. 21, 2018. Kunming is a well-known tourist attraction for its mild climate and year-round greenery. (Xinhua/Yang Zongyou)