The word **包扎** is a compound verb formed by combining two morphemes with related meanings: **包** (*bāo*), which means "to wrap" or "to bundle," and **扎** (*zā*), which means "to tie" or "to bind." Together, they create a more specific and vivid meaning than either character alone, describing the complete action of **wrapping something up and then securing it with ties**, most commonly used in the context of bandaging a wound or packaging an item. This type of word formation, where two synonymous or semantically related characters are paired to convey a single, cohesive concept, is a standard and productive method in Chinese for creating precise and practical vocabulary.