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ocean; deep sea
遠洋漁業は長期間にわたる厳しい仕事だ。
Deep-sea fishing is a tough job that lasts for long periods.
遠洋航海に出る船に食料を積み込んだ。
Food was loaded onto the ship departing for an ocean voyage.
遠洋で捕れた新鮮な魚が市場に並んだ。
Fresh fish caught in deep waters were lined up at the market.