"Trawler" Natural Recordings by Native Speakers
A trawler is a fishing boat that uses a trawl, a large net that is dragged along the sea floor to catch fish. It is typically used in deep-water fishing operations and can be either motorized or sail-powered. Trawlers are often used for commercial fishing and can be found in seas and oceans around the world.
To search or explore a wide area, often in a casual or aimless manner: "The boat trawled through the calm waters, looking for signs of fish."