形容词
中文翻译：稀有的
同义词：
['scarce', 'uncommon', 'scarce']
例句：
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1. This rare species is only found in a small area of the world.
这种稀有物种只在世界的一个小地区发现。
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2. The rare opportunity to travel abroad was something I never thought I'd have.
出国旅行的难得机会是我从未想过的。
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3. Rarely does he come across someone who truly understands him.
他很少遇到真正理解他的人。