Villagers play on the swing in Shangyanghua Village of Zhouzhi County, Xi'an City of northwest China's Shaanxi Province, Jan. 9, 2020. Villagers in Shangyanghua Village on Thursday started their annual swing play tradition to greet the upcoming Spring Festival. The tradition is said to be over 700 years old in the village. (Xinhua/Liu Xiao)

Children play on the swing in Shangyanghua Village of Zhouzhi County, Xi'an City of northwest China's Shaanxi Province, Jan. 9, 2020. Villagers in Shangyanghua Village on Thursday started their annual swing play tradition to greet the upcoming Spring Festival. The tradition is said to be over 700 years old in the village. (Xinhua/Liu Xiao)

Children play on the swing in Shangyanghua Village of Zhouzhi County, Xi'an City of northwest China's Shaanxi Province, Jan. 9, 2020. Villagers in Shangyanghua Village on Thursday started their annual swing play tradition to greet the upcoming Spring Festival. The tradition is said to be over 700 years old in the village. (Xinhua/Liu Xiao)

Villagers play on the swing in Shangyanghua Village of Zhouzhi County, Xi'an City of northwest China's Shaanxi Province, Jan. 9, 2020. Villagers in Shangyanghua Village on Thursday started their annual swing play tradition to greet the upcoming Spring Festival. The tradition is said to be over 700 years old in the village. (Xinhua/Liu Xiao)

Villagers play on the swing in Shangyanghua Village of Zhouzhi County, Xi'an City of northwest China's Shaanxi Province, Jan. 9, 2020. Villagers in Shangyanghua Village on Thursday started their annual swing play tradition to greet the upcoming Spring Festival. The tradition is said to be over 700 years old in the village. (Xinhua/Liu Xiao)

Children play on the swing in Shangyanghua Village of Zhouzhi County, Xi'an City of northwest China's Shaanxi Province, Jan. 9, 2020. Villagers in Shangyanghua Village on Thursday started their annual swing play tradition to greet the upcoming Spring Festival. The tradition is said to be over 700 years old in the village. (Xinhua/Liu Xiao)

Children play on the swing in Shangyanghua Village of Zhouzhi County, Xi'an City of northwest China's Shaanxi Province, Jan. 9, 2020. Villagers in Shangyanghua Village on Thursday started their annual swing play tradition to greet the upcoming Spring Festival. The tradition is said to be over 700 years old in the village. (Xinhua/Liu Xiao)