This graduate student is about the equipment for catching squid. Under the overall appearance of the raw cuttlefish, a spiral thread groove is formed. Therefore, if there is a fishing line in the threaded groove, the fishing line will not overlap and will be entangled. When the fishing line is re untied, the fishing line will be hung with a fishing needle, which will be entangled together. Because there was no such thing, the squid fishing work was completed very quickly, which increased the fishing effect.
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