名词
中文翻译：障碍物
同义词：
['block', 'hindrance', 'obstruction']
例句：
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1.The road was blocked by a large tree.
路被一棵大树挡住了。
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2. He encountered many obstacles in his journey.
他在旅行中遇到了许多障碍。
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3.The project faced numerous obstacles that needed to be overcome.
这个项目面临着许多需要克服的障碍。