1、Oceanography is the study of the Earth's oceans, including their composition, properties, and marine life.
海洋学是研究地球的海洋，包括其组成、性质和海洋生物的学科。
2、He has a deep passion for oceanography and spends most of his time exploring the mysteries of the deep sea.
他对海洋学有着深深的热爱，大部分时间都在探索深海的奥秘。