Nánbīngyáng de shuǐwēn chángnián zài língdù yǐxià.
The Southern Ocean's water temperature is below zero year-round.
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Synonym 南极洲 (Nánjízhōu) refers to the continent; 南冰洋 / 南大洋 (Nándàyáng) refers to the ocean. The IHO formally recognized the Southern Ocean as the world's fifth ocean in 2000.
