Brush your teeth before you go to bed.
Meaning: This means to clean the hard, white structures in your mouth that you use to bite and chew food with a brush earlier in time or order than lying down in bed to sleep.
Choice of Words: Brush means to clean something with a brush. Teeth are the hard, white structures in your mouth that you use to bite and chew food. Before means earlier in time or order. Go to bed means to lie down in bed to sleep.
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Related Expressions