名词 barrier:- a structure or object that impedes free movement
- any condition that makes it difficult to make progress or to achieve an objective
- anything serving to maintain separation by obstructing vision or access
- barrier field
- barrier metal
- barrier layer
- barrier basin
- barrier Human
- barrier
- barrier crash
- barrier plate
- barrier board
- barrier block
- barrier width
barriers是什么意思 barriers在线翻译 barriers什么意思 barriers的意思 barriers的翻译 barriers的解释 barriers的发音 barriers的同义词
