walker

1. N-COUNT A walker is a person who walks, especially in the countryside for pleasure or in order to keep healthy. (尤指在乡间休闲或锻炼的)散步者

2. N-COUNT A walker is a special kind of frame designed to help babies or disabled or ill people to walk. 步行器; 帮助婴儿、残疾人或病人走路[oft supp N]

She eventually used a cane, then a walker, and finally was confined to the house. 结果她拄上了拐杖，之后又用上了步行器，最后连房门都出不了了。