ha-ha
/ˈhɑːhɑː/noun
- a ditch with a wall on its inner side below ground level, forming a boundary to a park or garden without interrupting the view(公园或花园界沟内侧中不阻断视线的)地下隐篱, 暗墙。
词源
early 18th cent.: from French, said to be from the cry of surprise on suddenly encountering such an obstacle.