刷牙的英语该怎么说呢

To brush your teeth in English, you can say "brush your teeth" or simply "brush." For example:

"It's time to brush your teeth before bed."

"Don't forget to brush every morning and night."

You can also use the verb "floss" to refer to cleaning between your teeth with dental floss. For example:

"Make sure to floss after you brush your teeth."

"Flossing helps to remove plaque and food particles from between your teeth."