形容词
中文翻译：无法通行的
同义词：
['uncrossable', 'inaccessible']
例句：
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1.The mountain was impassable to human beings until recently.
这座山直到最近对人类来说都是无法通行的。
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2.The road was impassable due to the heavy snowfall.
由于大雪，这条路变得无法通行。
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3.The river is impassable for most of its length due to rapids and rapids.
这条河大部分长度因急流而无法通行。