"韩国" 的英文翻译是 "South Korea".
来源：韩国在地理上位于朝鲜半岛的南部，所以被称为 "South" Korea。
英文例句及其中文翻译：
"I'm planning a trip to South Korea next year." (我打算明年去韩国旅行。)
"South Korea is known for its depcious food and technology industry." (韩国以美食和科技产业而闻名。)
"The 2018 Winter Olympics were held in South Korea." (2018年冬季奥运会在韩国举办。)