名词
中文翻译：障碍
同义词：
['barrier', 'obstruction', 'impediment']
例句：
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1. The road was blocked by a large tree.
一条道路被一棵大树阻挡了。
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2. The project encountered several barriers during the implementation process.
该项目在实施过程中遇到了几个障碍。
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3. The new policy has raised several barriers for businesses to adapt to.
新政策给企业适应带来了几个障碍。