barrier
/ˈbærɪə(r)/noun
1- a fence or other obstacle that prevents movement or access屏障; 障碍物。
1.1
- Brit. a gate at a car park or railway station that controls access by being raised or lowered〈英〉（车库门口或火车站口控制进入的）升降栏。
1.2
- figurative a circumstance or obstacle that keeps people or things apart or prevents communication or progress〈喻〉障碍; 隔阂：
a language barrier
语言障碍
the cultural barriers to economic growth
妨碍经济发展的文化隔阂
an attempt to break the 100-mile-an-hour barrier.
突破每小时100英里障碍的试图。
词源
late Middle English (denoting a palisade or fortification defending an entrance)： from Old French barriere, of unknown origin; related to BARRE.