可数
barrier
[美] [ˈbærɪr] [英] [ˈbæriə]
名词障碍物;路障,栅栏
The police put up barriers to control the crowd.警察设置障碍物,借以控制人群.
剪票口;海关关卡
Mike was stopped at the barrier because he forgot to show his ticket.麦克在剪票口被拦住了,因为他忘记出示车票.
界线[(+between)]
障碍,阻碍[(+to)]
They soon overcame the language barrier.不久他们便克服了语言上的障碍.