roadblock

n. 障碍, 障碍物

road.block

n.（名词）
A barricade or an obstruction across a road set up to prevent the escape or passage, as of a fugitive or enemy troops.
路障：如阻止叛逃者或敌军通行的关卡等横跨公路设置以阻止逃跑或通行的障碍物
An obstruction in a road, as fallen rocks or trees.
道路障碍：滚落下来的大石块或倒地的树等公路上的阻碍物
Something, such as a situation or condition, that prevents further progress toward an accomplishment.
障碍：一种阻止进一步发展的情形或状态