形容词
中文翻译：无法购买的
同义词：
['inaccessible', 'unavailable', 'unattainable']
例句：
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1. The rare bird species is unprocurable due to its habitat destruction.
由于栖息地破坏，这种稀有鸟类物种难以获得。
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2. The book is unprocurable because it's out of print.
这本书已经绝版了，所以无法购买。
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3. The mineral deposit is unprocurable due to its location in remote areas.
由于位于偏远地区，这个矿藏难以获得。