沿海 yánhǎi coastal
How to remember 沿海: 沿 to follow a course + 海 sea = coastal.
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How it is used
- Coastal, along the sea - 沿海城市 (yánhǎi chéngshì) coastal cities, 沿海地区 (yánhǎi dìqū) the coastal region.
- An attributive meaning 'situated along the coast'; the 沿 means 'along'.
- Contrast 内陆 (nèilù, inland); 沿海 vs 内陆 is a standard geographic/economic contrast in China.