海域 hǎiyù sea area
sea area; territorial waters; maritime space
How to remember 海域: 海 sea + 域 area = sea area.
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How it is used
- A sea area / maritime zone / territorial waters - 中国海域 (Zhōngguó hǎiyù) China's waters, 争议海域 (zhēngyì hǎiyù) disputed waters.
- A formal geographic/legal term for a defined stretch of sea; 海 (sea) + 域 (zone).
- Common in news about maritime boundaries and fishing/navigation.