People throw snowballs during a snowball fight at the University of British Columbia (UBC) in Vancouver, Canada, Jan. 16, 2020. About 1,000 students took part in the snowball fight.

People throw snowballs during a snowball fight at the University of British Columbia (UBC) in Vancouver, Canada, Jan. 16, 2020. About 1,000 students took part in the snowball fight.

People throw snowballs during a snowball fight at the University of British Columbia (UBC) in Vancouver, Canada, Jan. 16, 2020. About 1,000 students took part in the snowball fight.

A student tries to throw snowball during a snowball fight at the University of British Columbia (UBC) in Vancouver, Canada, Jan. 16, 2020. About 1,000 students took part in the snowball fight. (Photos: Xinhua)