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killer whale (n)/ˈkɪl.ɚ ˌweɪl//ˈkɪl.ə ˌweɪl/a large, black and white sea mammal related to dolphinscá voi sát thủ ![]() Killer whales swim really fast. Killer whales, or orcas, are known for their intelligence and social behavior. Marine biologists study the migratory patterns of killer whales. SeaWorld showcases trained killer whales in educational performances. The documentary highlighted the conservation efforts to protect killer whale habitats. Từ vựng khác:hear , intelligent , illegal , llama , load |