海洋, 大洋
a very large expanse of sea, in particular each of the five main areas of the earth's surface (the Atlantic, Pacific, Indian, Southern, and Arctic Oceans)
:
• The ship sailed across the vast ocean.
船隻航行在浩瀚的海洋上。
• Deep-sea creatures live at the bottom of the ocean.
深海生物生活在海洋底部。
