roadblock
noun [ C ] uk/ˈrəʊd.blɒk/ us/ˈroʊd.blɑːk/
路障
a temporary structure put across a road to stop traffic
Police put up/set up roadblocks on all roads out of the town in an effort to catch the bombers. 警察在所有出城的路上都设了路障，企图抓获放置炸弹的人。