小测验：选择正确的单词

1. I have a hillside villa there.
   那里我有一栋山坡别墅。
2. A little fresh spring is flowing by the hillside.
   小小清泉在山边流淌。
3. The tractor laboured up the hillside.
   拖拉机艰难地向山坡上爬去。
4. I cut the grass on the hillside in the summer.
   夏天我在山坡上割草。
5. Rocks and stones were rolling down the hillside.
   岩石和碎石沿着山坡滚下。

　1个名词解释