flat bush for automatic device

例句：

1. 1. The floor is very flat.
   地板非常平坦。
2. 2. She moved the furniture to make the room flat.
   她把家具移动，使房间变得平坦。
3. 3. The road is flat and easy to drive on.
   这条路平坦且易于驾驶。
4. 1. There are many different types of bushes in the park.
   公园里有许多不同的灌木。
5. 2. The bush was full of small birds.
   灌木丛里有小鸟儿。
6. 3. The bush was overgrown with weeds.
   灌木丛被野草覆盖了。