n.海中央
adj.海洋中部的
This creature lives in the depth of the ocean. 這種生物生活在海洋深處。
The ocean lanes are always busy. 遠洋航路總是很繁忙。
The ship plowed across the ocean. 輪船在大海上破浪前進。
The ship ploughed across the ocean. 輪船在大海上破浪前進。
mid ocean ridge 大洋中背