1 to treat sb badly, without considering his/her needs or feelings 虐待；欺负: I don't know why she lets her husband walk all over her like that. 我不知道她为什么听凭丈夫那样欺侮她。

2 to defeat sb completely 彻底打败: He played brilliantly and walked all over his opponent. 他在比赛中表现出色，彻底打败了对手。