In trawling, a fishing boat drags a bag-shaped net along the sea bottom. Fish such as cod, flounder, and haddock are caught in this way.

用拖网捕鱼时，渔船拖着一个袋状的网，从海底兜网鱼类。鳕、比目鱼、黑线鳕等都是用这种方法捕捞的。

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In trawling, a fishing boat drags a bag-shaped net along the sea bottom. Fish such as cod, flounder, and haddock are caught in this way.

用拖网捕鱼时，渔船拖着一个袋状的网，从海底兜网鱼类。鳕、比目鱼、黑线鳕等都是用这种方法捕捞的。

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