lt has a head,but no neck.it has a body,but no warmth.no feet,but can travel

问题描述:

lt has a head,but no neck.it has a body,but no warmth.no feet,but can travel
这是个英语灯谜,

它有头没有颈,有身体没有体温,没有脚但能旅行(走)
蛇 snake