柯林斯词典yule log 1. N a large log of wood traditionally used as the foundation of a fire in the hearth at Christmas 圣诞柴 返回 yule log剑桥词典a cylinder-shaped chocolate cake , eaten at Christmas , that is decorated to look like a log (= a thick piece of wood from a tree ) 圣诞节原木形巧克力蛋糕 US a large piece of wood , usually burned on Christmas Eve 圣诞节原木（指圣诞前夜放入炉中燃烧的大原木） 返回 yule log