名词
中文翻译：自由流动的渠道
同义词：
['unimpeded flow', 'unrestricted flow']
例句：
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1.The free-flowing channel allows for the efficient movement of water.
自由流动的渠道允许水流高效地移动。
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2. The river is a natural free-flowing channel that provides habitat for various species.
这条河流是一个自然的自由流动通道，为各种物种提供了栖息地。
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3. The construction of this bridge will greatly enhance the free-flowing channel of the river.
这座桥梁的建设将极大地改善河流的自由流动通道。