Honan

例句：

1. 1. The Hoan Kiem Lake is a popular tourist destination in Hanoi.
   还剑湖是河内的热门旅游目的地。
2. 2. The Hoan Kiem War Remembrance Museum commemorates the war's victims.
   还剑湖战争纪念馆纪念战争受害者。
3. 3.Hoan Kiem Lake is surrounded by many parks and gardens, providing a peaceful retreat for locals.
   还剑湖周围有许多公园和花园，为当地人提供了一个宁静的避风港。