open ocean

open ocean — 名詞

1. the area of ocean that is far from any land and not sheltered by a coast.

1.名詞B2
釋義

外海；曠洋

遠離陸地的廣闊海域

the area of ocean that is far from any land and not sheltered by a coast.

例句

After three days, the Watanabe family reached the open ocean, where no land was visible.

航行三天後，Watanabe 一家抵達外海，四周看不見任何陸地。

collocation: 'reach the open ocean' after a voyage

Oceanographer Nadia studies how plastic waste travels across the open ocean and harms marine animals far from shore.

海洋學家 Nadia 研究塑膠垃圾如何穿過外海，危害遠離岸邊的海洋生物。

collocation: 'across the open ocean' for movement

常見搭配
  • the open ocean
  • across the open ocean
  • in the open ocean
  • vast open ocean
  • open ocean waters
同義詞
  • high seas

    a legal term for international waters beyond any country's jurisdiction, whereas 'open ocean' is a geographical description

  • deep sea

    emphasises depth rather than distance from land; often refers to the ocean floor or the water column below the surface layer

  • pelagic zone

    the scientific term for the open-ocean water column, used mainly in marine biology and oceanography

反義詞
  • coastal waters

    the shallow sea areas near the coastline

  • inshore

    the part of the sea closest to the shore, often sheltered by land

文法句型

the + open ocean

用法筆記

Frequently used with the definite article — 'the open ocean' — especially when referring to the concept as a distinct environment. Contrast with 'coastal waters', 'inshore', or 'the shallows'.

常見錯誤

The boat sailed into open ocean without any preparation.
The boat sailed into the open ocean without any preparation.
This noun phrase typically takes 'the' unless used as a general category ('Ships that sail open ocean need strong hulls').
Open ocean' (meaning 'offshore waters near a port').
offshore waters' or 'coastal waters
'Open ocean' specifically means far from land, not just outside a harbour.