rare

occasional, uncommon, scare, rare

形容词 rare:

1. not widely known; especially valued for its uncommonness
2. recurring only at long intervals
3. not widely distributed
4. marked by an uncommon quality; especially superlative or extreme of its kind
   同义词：uncommon
5. having low density
   同义词：rarefied, rarified
6. (of meat) cooked a short time; still red inside

1. It is rare to find such a genius nowadays.
   这样的天才现在很少见。
2. A collector of rare insects will show us some of his latest discoveries.
   一位稀有昆虫采集家将给我们看一些他的最新发现。
3. Parliament has passed an Act forbidding the killing of rare animals.
   国会通过了一项法令，禁止捕杀珍稀动物。
4. These rare tigers are protected by special laws.
   这些珍贵的老虎受到专门法律的保护。
5. Those rare books are shelved in the East Library.
   那些珍贵的书籍都放在图书馆东馆的架子上。
6. It's very rare for him to be so late.
   他很少迟到。
7. He's devoted his whole life to the protection of the rare animals.
   他终生献身于珍稀动物的保护。

rare

adj.（形容词）
rar.er,rar.est 缩写 r.
Infrequently occurring; uncommon:
罕见的：很少发生的；特殊的：
例句：
a rare event; a plant that is rare in this region.
罕见的事件；在本地区很少见的植物

Excellent; extraordinary:
优秀的，不寻常的：
例句：
a rare sense of honor; a rare friend.
不寻常的荣誉感；极好的朋友

Thin in density: rarefied:
稀薄的：密度小的；经过稀化的：
例句：
rare air.
稀薄的空气

来源：
Middle English
中古英语
from Old French
源自 古法语
from Latin r3rus
源自 拉丁语 r3rus

【引伸】
rare.ness
n.（名词）

---------------另--------------
rare
rare 2

adj.（形容词）
rar.er,rar.est
Cooked a short time to retain juice and redness:
嫩的：煎的时间短，保留了汁和鲜红色的：
例句：
a rare steak.
鲜嫩的牛排

来源：
Middle English rere [lightly boiled]
中古英语 rere [轻微的煎烤过的]
from Old English hrôr * see ker…-
源自 古英语 hrôr *参见 ker…-

【引伸】
rare.ness
n.（名词）