1.At least 52 polar bears have been seen wandering around the town of Belushya Guba.
wander around 徘徊
I don't want to wander around downtown at this time of night.
我可不想这么晚了还在市区晃悠 。
2.Officials say the polar bears are roaming into towns looking for food.
roam 闲逛;漫游
Barefoot children roamed the streets.
光着脚的孩子们在街上闲逛 。