A worker scans a package at a sorting center of Croatian Post in Velika Gorica, Croatia, Dec. 23, 2020. Croatian Post is dealing with huge amount of holiday mails and packages before the Christmas and New Year holidays. (Davor Puklavec/Pixsell via Xinhua)

A worker carries packages at a sorting center of Croatian Post in Velika Gorica, Croatia, Dec. 23, 2020. Croatian Post is dealing with huge amount of holiday mails and packages before the Christmas and New Year holidays. (Davor Puklavec/Pixsell via Xinhua)