Argun River(redirected from O-erh-ku-na Ho)
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|Noun||1.||Argun River - a river in eastern Asia that arises in China and flows northeast along the border between China and Russia to become a tributary of the Amur River|
Asia - the largest continent with 60% of the earth's population; it is joined to Europe on the west to form Eurasia; it is the site of some of the world's earliest civilizations