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1969年,中苏边界大小摩擦不断出现,以至酿成珍宝岛自卫反击战。“五年一小庆,十年一大庆。”这一年正是20年大庆。苏联在珍宝
In 1969, the size and friction of the Sino-Soviet border continued to emerge, which led to the self-defense counterattack in Zhenbao Island. “Five years a small celebration, ten years a celebration. ” This year is exactly 20 years of celebration. Soviet Union in the treasure