名词
中文翻译：通道阻塞
同义词：
['blockage', 'obstruction']
例句：
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1.The channel was blocked by a large tree.
一条通道被一棵大树堵塞了。
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2.The engineers were trying to clear the channel blockage.
工程师们正在试图清除通道的阻塞。
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3.The sudden blockage of the waterway caused an emergency situation.
水道突然阻塞引发了紧急情况。