洗脚用英语表达为"foot washing"，它来源于英语单词"wash"和"foot"的结合。例句：

I need to wash my feet before bed. (我需要在睡觉前洗脚。)

She offered to wash our feet after the long hike. (长途旅行后，她主动提出帮我们洗脚。)

The hotel provides foot washing services for guests. (酒店为客人提供洗脚服务。)