large toothless marine food fish with a long swordlike upper jaw; not completely cold-blooded i.e. they are able to warm their brains and eyes: worldwide in warm waters but feed on cold ocean floor coming to surface at night
例句
用作名词 (n.)
These include shark, swordfish, king mackerel, and tilefish. 这些鱼类包括鲨鱼、旗鱼、鲭鱼和方头鱼。