天黑后你应该避开镇上那个危险的区域。

You should avoid that ___rough part of town after dark.

冰球是一项身体冲撞很多的剧烈运动。

Hockey is a ___rough sport with a lot of physical contact.

法国大革命是历史上一个特别动荡危险的时期。

The French Revolution was a particularly ___rough period in history.