The word 捉住 (zhuō zhù) is a classic example of a Chinese verb-resultative compound, where the first character 捉 (zhuō) provides the core action, meaning "to catch" or "to seize", and the second character 住 (zhù) functions as a resultative complement indicating a successful or fixed outcome, meaning "to be firm" or "to stay". Together, they combine to form a single lexical unit meaning "to catch hold of" or "to seize successfully", where 住 grammatically signifies that the action of catching has been effectively completed and the object is secured. This structure is a fundamental and productive method in Mandarin for creating verbs that express an action and its concrete result in one concise term.