barrier

1.屏障；障碍物an object like a fence that prevents people from moving forward from one place to another

2.障碍；阻力；关卡a problem, rule or situation that prevents sb from doing sth, or that makes sth impossible

3.分界线；隔阂；障碍something that exists between one thing or person and another and keeps them separate

4.难以逾越的数量（或水平、数目）；关口a particular amount, level or number that it is difficult to get past

1.障碍;壁垒;界线

2.栅,栅栏,隔栏,障壁,隔板,挡板;赛马的出发栅

3.关口,(海关)关卡

4.(扩伸到海洋中的)南极洲冰层

1.用栅围住

1.a bar or gate that stops people or vehicles from entering a place; something that separates one thing from another

2.anything that prevents progress or makes it difficult for someone to achieve something; something that prevents people from communicating, working together, etc.; a number, limit, or level that is considered important because it is difficult to go past