Barriers have been erected all along the route the Pope will take.
在教皇将要经过的路上,沿途都设置了路障。
The mountains acted as a natural barrier to the spread of the disease.
群山成为了阻止该疾病扩散的天然屏障。
Passengers are requested to show their tickets at the barrier.
旅客需要在检票口出示车票。