VOA英语视频：乌克兰前线采访——巴赫穆特战况激烈，俄军不断逼近

As both Ukraine and Russia step up military force in Eastern Ukraine, Russia appears to be close to surrounding Bakhmut, a city that has been the site of fierce battles for months. VOA’s Heather Murdock reports from Bakhmut. Camera: Yan Boechat