Other floating cities might be built in the open ocean.

其他的漂浮城市可以建在开阔的海洋里。

youdao

Gannets are denizens of the open ocean.

塘鹅是栖息于大海的动物。

《柯林斯英汉双解大词典》

It has been suggested that Pakicetus fed on fish in shallow water and was not yet adapted for life in the open ocean.

有人认为巴基鲸以浅水中的鱼为食，还没有适应开放海域的生活。

youdao

One problem is that there is simply too much cheating in the open ocean.

ECONOMIST: Fishing and conservation

They found that during the period of study, eight of them ventured out into the open ocean.

BBC: Crocodiles 'surf' long distance on ocean currents

They will work with other nations towards promoting marine protected zones in the open ocean, including the Arctic.

BBC: Refusal over Arctic drilling ban