Preserved meat are aired in the ancient town of Anchang in Shaoxing, east China's Zhejiang Province, Dec. 11, 2019. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Photo taken on Dec. 11, 2019 shows the night view of the ancient town of Anchang in Shaoxing, east China's Zhejiang Province. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

A boat sails on the river in the ancient town of Anchang in Shaoxing, east China's Zhejiang Province, Dec. 11, 2019. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Photo taken on Dec. 12, 2019 shows the ancient town of Anchang at dawn in Shaoxing, east China's Zhejiang Province. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Aerial photo taken on Dec. 11, 2019 shows the ancient town of Anchang in Shaoxing, east China's Zhejiang Province. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Aerial photo taken on Dec. 11, 2019 shows the ancient town of Anchang in Shaoxing, east China's Zhejiang Province. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

A black-awning boat sails on the river in the ancient town of Anchang in Shaoxing, east China's Zhejiang Province, Dec. 11, 2019. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Photo taken on Dec. 12, 2019 shows the ancient town of Anchang at dawn in Shaoxing, east China's Zhejiang Province. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Preserved meat are aired in the ancient town of Anchang in Shaoxing, east China's Zhejiang Province, Dec. 11, 2019. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Preserved meat are aired outside the house in the ancient town of Anchang in Shaoxing, east China's Zhejiang Province, Dec. 12, 2019. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Photo taken on Dec. 11, 2019 shows the ancient town of Anchang in Shaoxing, east China's Zhejiang Province. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

A black-awning boat sails on the river in the ancient town of Anchang in Shaoxing, east China's Zhejiang Province, Dec. 11, 2019. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)

Photo taken on Dec. 12, 2019 shows the ancient town of Anchang at dawn in Shaoxing, east China's Zhejiang Province. The ancient town of Anchang, with a history of over 1,000 years, attracts a lot of tourists. (Xinhua/Xu Yu)