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The world is made up of seven continents and four oceans.
世界是由七大洲和四大洋组成的。
youdao
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How many oceans are there on the earth? There are four oceans.
地球上有几个大洋？有四个大洋。
youdao
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How many oceans are there on the earth? There are four oceans.
地球上有几个大洋？有四个大洋。
youdao