名词

1. 障碍；壁垒；阻碍
A barrier is something such as a rule, law, or policy that makes it difficult or impossible for something to happen or be achieved.

2. 隔阂；阻碍
A barrier is a problem that prevents two people or groups from agreeing, communicating, or working with each other.

3. 关卡；栅栏
A barrier is something such as a fence or wall that is put in place to prevent people from moving easily from one area to another.

4. 障碍物；挡板；屏障
A barrier is an object or layer that physically prevents something from moving from one place to another.

5. 大关；界限
You can refer to a particular number or amount as a barrier when you think it is significant, because it is difficult or unusual to go above it.

6. see also: crash barrier;sound barrier

1. a structure or object that impedes free movement

2. any condition that makes it difficult to make progress or to achieve an objective

e.g. intolerance is a barrier to understanding

Synonym: roadblock

3. anything serving to maintain separation by obstructing vision or access