gora

例句：

1. 2.
   复数
2. 3.
   古
3. 1.The village is surrounded by several knolls and hills.
   这个村庄周围有好几个小山包和丘陵。
4. 2. The farmer has built a mound of earth to protect his crops.
   农民已经堆起了一堆土来保护他的庄稼。
5. 3. The ancient Greeks used the highland knolls for their battlements.
   古希腊人用高地的小山包作为他们的城墙。