Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
障碍
先理解核心含义，再看它在真实句子里的用法。
障碍；障碍物
any condition that makes it difficult to make progress or to achieve an objective
intolerance is a barrier to understanding
正在加载中文释义…
any condition that makes it difficult to make progress or to achieve an objective
正在加载中文释义…
a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc.
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More ways to explore
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
发长 /oʊ/ 音 (如 boat, coat)
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Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT.