最終更新日：2024/07/29

(oceanography) A submarine trench in the North Pacific Ocean, noted for having the deepest known point on Earth.

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Mariana Trench

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Mariana Trench

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(oceanography) A submarine trench in the North Pacific Ocean, noted for having the deepest known point on Earth.

The Mariana Trench is the deepest part of the world's oceans.

意味（1）

(oceanography) A submarine trench in the North Pacific Ocean, noted for having the deepest known point on Earth.