海洋系统英文

ocean[5EuFEn]n.大海, 海洋, 许多, 广阔herring pondn.海洋(尤指北大西洋)sea[si:]n.大海，海洋North Sea北海"At the beginning of the journey, the sea was asleep."刚起程时海上风平浪静。海，内海the Caspian Sea里海（与of连用）似海的东西；广阔，无限，浩瀚a sea of flames一片火海

sea大海ocean洋后面那个大哦.

ocean准确点。

.seas and oceans; the ocean; the sea