China-Europe freight train loaded with mails arrives in Zhengzhou, central China's Henan

Aerial photo taken on Feb. 28, 2020 shows a China-Europe freight train loaded with 6,896 mails at Zhengzhou Station, central China's Henan Province. The China-Europe freight train from Hamburg of Germany is the first returning train for International mails since the restoration of its regular operation in November of 2018. (Xinhua/Li An)