形容词
中文翻译：稀有的
同义词：
['scarce', 'uncommon', 'infrequent']
例句：
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1. This rare gem is worth its weight in gold.
这颗稀有的宝石价值连城。
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2. The rare species of butterfly has been found only in a few places.
这种稀有的蝴蝶只在少数地方发现。
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3. Rare earth metals are essential for modern electronics.
稀有金属是现代电子设备不可或缺的。