最終更新日：2025/11/23
Amur forms a wide border between the Far East of Russia and Northeastern China as it flows toward the Strait of Tartary, where its mouth faces the northern end of Sakhalin Island.
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Amur forms a wide border between the Far East of Russia and Northeastern China as it flows toward the Strait of Tartary, where its mouth faces the northern end of Sakhalin Island.
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