Meaning and Usage
"海洋" (hǎi yáng) specifically refers to the vast bodies of saltwater that cover most of the Earth's surface, commonly translated as "ocean." It is used in scientific, environmental, and geographical contexts.
Common Collocations
- 海洋生态系统 (hǎiyáng shēngtài xìtǒng): ocean ecosystem, used when discussing marine biology or environmental science.
- 海洋运输 (hǎiyáng yùnshū): ocean shipping, referring to maritime transport.
- 海洋资源 (hǎiyáng zīyuán): ocean resources, often in economic or ecological discussions.
Usage Notes
"海洋" is a formal term and often appears in academic, news, or technical contexts rather than casual conversation. It contrasts with "海" (hǎi), which can mean sea or ocean but is more general and sometimes used in everyday speech. Avoid confusing "海洋" with "海岸" (coast) or "海域" (sea area), which have more specific geographic meanings.
Summary
Use "海洋" when referring to the large, open ocean expanses, especially in scientific or formal contexts. It conveys a sense of vastness and is often paired with words related to ecology, transport, or resources.