The word **漱口** is a compound verb formed by combining two characters: **漱**, meaning "to rinse" or "to gargle," and **口**, meaning "mouth." It follows a common grammatical structure in Chinese where a verb (**漱**) is directly paired with its object (**口**), creating a transparent and logical phrase that literally means "to rinse the mouth." This formation exemplifies how Chinese frequently builds precise terms by directly stating the action and its target, resulting in the standard term for the act of mouth-rinsing or brushing one's teeth.