barriers
英
['bæriəz]
美
['bæriəz]
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名词 barrier:
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a structure or object that impedes free movement
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any condition that makes it difficult to make progress or to achieve an objective
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anything serving to maintain separation by obstructing vision or access
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以上内容独家创作,受著作权保护,侵权必究
海词词典,十七年品牌