barrier
n.障碍;屏障;栅栏;分界线
vt.把关入栅栏;用栅栏围住
复数：barriers
例句
1.How do you deal with the language barrier?
你如何克服语言障碍呢?
2.How did the press guys get through the barrier?
这资讯界的家伙怎么过的屏障?
3.Green barrier for export of electron and mechanic products.
机电产品出口遇到的绿色壁垒及突破口。
4.The barrier must block the signal.
蔽障一定阻碍了信号.
5.A dam is a barrier holding water back.
水坝是防堵水的障碍物。