An oceanographer is a scientist whose job is the ocean. They study the water itself: waves, currents, temperature, salt, the shape of the sea floor, and how the ocean and the weather push on each other.

An oceanographer「oceanographer」（海洋學家） is是 a scientist whose job is the ocean一種工作內容就是海洋的科學家。They他們 study研究 the water itself海水本身: waves, currents, temperature, salt, the shape of the sea floor波浪、洋流、溫度、鹽度、海底的形狀, and以及 how the ocean and the weather push on each other海洋和天氣如何互相影響。

This is the person, not the subject. The subject is oceanography — the name of the science.

This這個詞 is the person指的是「人」, not而不是 the subject那門學科。The subject那門學科 is是 oceanography「oceanography」 — the name of the science這門科學的名字。

You might picture someone on a research ship, dropping instruments into deep water, or sitting with maps and computer models of the whole sea. The word is formal and belongs to science and news, not to small talk.

You might picture someone你可以想像一個人 on a research ship在研究船上, dropping instruments into deep water把儀器放進深海裡, or或者 sitting with maps and computer models of the whole sea坐著看整個海洋的地圖和電腦模型。The word這個詞 is formal很正式, and belongs to science and news屬於科學和新聞的用語, not而不是 to small talk閒聊會用的。

Though actually, the work overlaps with other sea sciences: a marine biologist looks especially at living things in the sea, while an oceanographer may look at the water, the chemistry, and the sea floor as well as the life. The edges are not perfectly tidy.

Though actually不過其實, the work這份工作 overlaps with other sea sciences跟其他的海洋科學有重疊: a marine biologist海洋生物學家 looks especially at尤其專注在 living things in the sea海裡的生物, while而 an oceanographer海洋學家 may look at可能會看 the water, the chemistry, and the sea floor as well as the life海水、化學成分、海底，還有生物本身。The edges這中間的界線 are not perfectly tidy並不是切得那麼乾淨。