walker:
1.One that walks,especially a contestant in a footrace.步行者
2.A frame device used to support someone,such as an infant learning to walk or a convalescent learning to walk again.
支持物
3.A shoe specially designed for walking comfortably.Often used in the plural.
轻便鞋
4.A city of west-central Michigan,a suburb of Grand Rapids.Population,17,279.沃克：密歇根中西部城市,大瀑布城的郊区城之一.人口17,279
newcastle:
A town of southern Ontario,Canada,on Lake Ontario east of Toronto.It was established in a dairy and farm region.Population,32,229.
纽卡斯尔：加拿大安大略南部的一个小镇,位于多伦多东边的安大略湖畔.它建于一个牛奶和农场区上.人口32,229