Wash your hair. Because the other three words are all goods nouns used for washing, but they are all goods nouns, and shampooing is the name of the activity when the action is going on, indicating the body's movements and behaviors, and it is a verb, so washing your hair with a toothbrush, comb and washbasin is different from shampooing. Toothbrush is a kind of cleaning products, especially a handle brush. It is used to add toothpaste to the brush, and then brush all parts of the teeth repeatedly to remove dental plaque.