flat yard

例句：

1. 1. The farmer has a flat yard for his livestock.
   这位农民有一个平地用来放他的牲畜。
2. 2. The city is surrounded by flat yards and parks.
   这座城市被平地和公园环绕。
3. 3. The flat yard was once used as a playground for children.
   那个平地曾经是孩子们的游乐场。