Snow sculptors work on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province, Dec. 18, 2020. (Photos: Xinhua)

Aerial photo taken on Dec. 18, 2020 shows snow sculptors working on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province.

Aerial photo taken on Dec. 18, 2020 shows snow sculptors working on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province.

Aerial photo taken on Dec. 18, 2020 shows snow sculptors working on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province.

Aerial photo taken on Dec. 18, 2020 shows snow sculptors working on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province.

Aerial photo taken on Dec. 18, 2020 shows snow sculptors working on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province.

Aerial photo taken on Dec. 18, 2020 shows snow sculptors working on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province.

Snow sculptors work on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province, Dec. 18, 2020.

Snow sculptors work on the main snow sculpture in the compound of the 33rd Harbin Sun Island International Snow Sculpture Art Exposition in Harbin, northeast China's Heilongjiang Province, Dec. 18, 2020.