a specially designed long stick, often made of metal and used in a pair, that gives you support when you are walking

Walking sticks or two trekking poles can help you keep your balance on icy or snowy trails. 手杖或两根登山杖可以帮助您在冰雪路面上保持平衡。

Nordic walking started in Finland and is basically a brisk walk with trekking poles. 北欧式越野行走起源于芬兰，基本上是带登山杖的快步走。