Pelagic sharks are usually caught on the high seas in tuna or swordfish fisheries.

深海鲨鱼通常在公海中被金枪鱼或旗鱼的捕捞渔业捕获。

Move to high seas-keep off coast.

移至公海——离开海岸。

It is not illegal to bear arms on the high seas.

毕竟在公海上携带武器并不违法。

You should be on a pirate ship on the high seas.

你一定是在公海上一艘的海盗船上了。