在洗头发的英文表达方式有以下几种:

wash one's hair
shampoo one's hair
cleanse one's hair

这些表达方式的来源都是源于英语中的动词。

下面是一些英文例句及其中文翻译:

I need to wash my hair before I go to bed.
我需要在睡觉前洗头发。
She shampooed her hair every day to keep it healthy and shiny.
她每天用洗发水洗头发,以保持头发健康闪亮。
He used a special hair cleanser to remove all the dirt and product build-up from his hair.
他使用了一种特殊的洗发产品清洁头发,去除头发中的污垢和残留物。