该书分为四个部分，分别对应太平洋、大西洋、印度洋和北冰洋。
The book is divided into 4 parts, one for each of the Pacific, Atlantic, Indian and Arctic oceans.
西北通道是北冰洋中连接太平洋和大西洋的一条通道，常年覆盖着冰雪。
Then as a result of the decreasing ice cover which means the North-West Passage is opening up it kept on going before heading south into the Atlantic.
大西洋是世界四大洋中的第二大海洋(它比太平洋小，但比印度洋和北冰洋大)。
The Atlantic ocean is the second largest of the world's four oceans (after the Pacific ocean, but larger than the Indian ocean and the Arctic ocean).
世界上有三大洋：太平洋、大西洋和印度洋。还有第四个小洋——北冰洋。
There are three vast oceans in the world: the Pacific ocean, the Atlantic ocean and the Indian ocean. There is a small fourth ocean-the Arctic ocean.
“你看，”青鱼说，“我游过北海、大西洋、印度洋、爪哇海、珊瑚海、太平洋、西伯利亚海和冰天雪地的北冰洋。”
"Look," said the herring, "I've swum through the North Sea, the Atlantic Ocean, the Indian Ocean, the Java Sea, the Coral Sea, the Great Pacific Ocean, the Siberian Sea, and the frozen Arctic."
“你看，”青鱼说，“我游过北海、大西洋、印度洋、爪哇海、珊瑚海、太平洋、西伯利亚海和冰天雪地的北冰洋。”
"Look," said the herring, "I've swum through the North Sea, the Atlantic Ocean, the Indian Ocean, the Java Sea, the Coral Sea, the Great Pacific Ocean, the Siberian Sea, and the frozen Arctic."
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