0 to pull a large, cone-shaped net through the sea at a deep level behind a special boat in order to catch fish -- hacer pesca de arrastre (en)
1 to search among a large number or many different places in order to find people or information you want -- rastrear
The software is used to trawl for information on the internet.
You need to trawl through a lot of data to get results that are valid.
2 a search among a large number or many different places in order to find people or information you want -- rastreo
3 a large, cone-shaped net used for trawling the water for fish -- red de arrastre
4 a wide-mouthed, bag-shaped net used to catch sea fish. -- red de arrastre
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Podemos completarlo paso a paso, por muy largo que sea el camino, y no se puede completar, por corto que sea el camino, si ni siquiera marcas tu huella.