the rareness of [something]
常用结构，表示某事物的稀有性。
The rareness of the disease makes it difficult to study.
这种疾病的罕见性使得研究困难。
稀有；罕见
稀罕；珍奇；稀薄
the quality or state of being rare; rarity
稀有；罕见
The property of being rare; rarity
The rareness of the gem made it highly valuable.
那颗宝石的稀有性使它非常珍贵。
用法提示：rareness 在此表示‘珍奇’，指宝石的稀有程度。
Due to the rareness of such opportunities, she decided to take it.
由于这种机会的罕见，她决定抓住它。
用法提示：rareness 在此表示‘稀罕’，指机会的稀缺性。
The rareness of the species calls for immediate conservation measures.
该物种的稀有性要求立即采取保护措施。
用法提示：rareness 在此表示‘稀少’，指物种的罕见程度。
常用结构，表示某事物的稀有性。
The rareness of the disease makes it difficult to study.
这种疾病的罕见性使得研究困难。
可用形容词修饰，如 extreme, relative, unusual 等。
The extreme rareness of the artifact increased its value.
该文物的极度稀有性增加了它的价值。
表示原因。
Due to the rareness of the mineral, it is highly sought after.
由于该矿物的稀有性，它备受追捧。
grammar · medium
易错句子This is a rareness bird.
正确表达This is a rare bird.
rareness 是名词，表示‘稀罕’或‘珍奇’，不能直接修饰名词。应使用形容词 rare 来修饰名词 bird。
grammar · medium
易错句子The rarenesses of these minerals are high.
正确表达The rareness of these minerals is high.
rareness 是不可数名词，没有复数形式。错误地加了 -es 变成复数，而应使用单数形式 rareness，谓语动词也用 is。
rareness强调性质（稀罕、珍奇），rarity多指具体事物或状态的稀有程度或珍品
rareness偏重稀少带来的珍奇感，scarcity偏重供应不足导致的短缺
rare
rare + -ly
rar(e) + -ity
rare + earth
rare + breed
rare + bird
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