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1·This species is extremely rare.

这一物种极为罕见。《牛津词典》

2·He contracted a rare form of cancer.

他患上了一种罕见的癌症。《柯林斯英汉双解大词典》

3·He suffers from a rare blood disease.

他患有一种罕见的血液病。《牛津词典》

4·I specifically asked for this steak rare.

我明确要求了要把这份牛排做成半熟的。《柯林斯英汉双解大词典》

5·Such a move is rare, but not unprecedented.

这样的举动少见，但并非从来没有过。《柯林斯英汉双解大词典》

6·Bollinger RD is a rare, highly prized wine.

是一种罕见的、非常名贵的葡萄酒。《柯林斯英汉双解大词典》

7·The bird is now a rare sight in this country.

如今在这个国家，这种鸟已罕见了。《牛津词典》

8·Both countries are behaving with rare delicacy.

两个国家都表现出难得的体谅周到。《柯林斯英汉双解大词典》

9·It must be stressed that this disease is very rare.

必须着重指出，这种病非常罕见。《牛津词典》

10·It's extremely rare for it to be this hot in April.

四月份就这样炎热是极其罕见的。《牛津词典》

罕见

1·This species is extremely rare.

这一物种极为罕见。《牛津词典》

2·It's extremely rare for it to be this hot in April.

四月份就这样炎热是极其罕见的。《牛津词典》

3·It must be stressed that this disease is very rare.

必须着重指出，这种病非常罕见。《牛津词典》

4·The FDA has approved a new treatment for a rare blood disorder.

食品及药物管理局通过了一种罕见血液疾病的新疗法。《柯林斯英汉双解大词典》

5·It remained an exceptionally rare book until it was reprinted in 1918.

在1918年再版之前，这本书一直非常罕见。《柯林斯英汉双解大词典》

稀有

1·It's rare, but it's not disappearing.

它很稀有，但它并没有在消失。

2·They must be made from a rare material.

它们一定是由稀有材料制成的。

3·He asked how much I spent on the rare jewel.

他问我花了多少钱买这件稀有的珠宝。

4·They won't only be using rare, antique pottery this time.

他们这次不会只使用稀有的古董陶器。

5·If you are interested in coin collecting, the first thing to do is to find a rare coin.

如果你对硬币收集感兴趣，首先要做的就是找到一枚稀有的硬币。

少见

1·Ingrid was a walker, even in Los Angeles, where a pedestrian is a rare sight.

英格丽德是个步行者，即使在行人少见的洛杉矶也是如此。《柯林斯英汉双解大词典》

2·Actually, it was pretty rare at that time.

事实上，那时候这种情况很少见。

3·It is not rare that major roads are choked with traffic in rush hours.

在交通高峰期，主要道路出现交通堵塞的情况并不少见。

4·Nowadays, it's not rare to see people post photos of luxury goods on the internet.

如今，人们在网上发奢侈品照片的现象并不少见。

5·It's a rare thing for anybody to be able to change who they really are, and this creates a lot of problems.

对于任何人来说，能够改变真正的自己是一件很少见的事情，这就产生了很多问题。

难得

1·It's rare good for thee, he said, nodding his head wisely.

“这对你来说是难得的好事。”他说着，明智地点了点头。

2·All this, I can only themselves to themselves, to their own this rare gift.

而这一切，现在我只能自己给自己，给自己这份难得的礼物。

3·The lightning-triggered beams somehow occur in the gases of our atmosphere, offering scientists a rare opportunity to study how such beams stay stable outside a vacuum.

闪电触发的粒子束大气层中以某种方式发生。 这给科学家们研究粒子束如何在非真空状态下稳定存在提供一个难得的机会。

4·When the barn is full of crops and bundles of hay are collected, the faces of peasants glow with smile. What a rare harvest year!

看着谷仓里堆满了粮食，院里整整齐齐剁好了干草，农民们脸上带着微笑，这真是一个难得的丰收年啊！

5·Said comes over in more informal, personal garb, his writing marked by tremendous enthusiasm and a depth and breadth of insight that is rare among writers on any subject.

赛义德以一副更加随意而具个性的扮相走来，他的作品热情洋溢，他对任何议题的真知卓见都臻至作家中难得的深度和广度。

珍稀的

1·He buys rare baseball cards on eBay.

他从易趣网上购买珍稀的棒球卡。《牛津词典》

2·The land varies in height from 700 meters above sea level to over 2,000 meters and is home to a great diversity of rare plants and animals.

这片土地的高度从海拔700米到2000多米不等，是多种珍稀动植物的家园。

3·The extinction of myriad biological species aroused deep concern which led people to an understanding of the special importance of protecting rare animals and plants on the brink of extinction.

无数生物物种的灭绝引起了人们的深切关注，使人们认识到保护濒临灭绝的珍稀动植物的特殊重要性。

4·They are a very rare sub-species of giraffe.

沃本野生动物园市场拓展部经理谢丽尔·威廉姆斯12日对媒体表示：罗特希尔德长颈鹿是长颈鹿中非常珍稀的一个亚种。

5·Such an increase could triple the number of types of rare plant in the preserves.

而这样的增长可以让现有受保护的珍稀植物的种类翻三番。

珍贵的

1·When you check the mail and find a real letter or package from someone youknow, excitement overtakes you as you tear into this rare gift.

如果查找邮件发现一封来自熟人的真正的信件或包裹，在拆开这份珍贵的礼物时你会感到兴奋不已。

2·Using rare video and photos we bring you the heart of Microsoft's struggles and successes.

通过珍贵的视频和图片，我们将你们见证微软的奋斗史和成功史。

3·The rare whisky was found 3 years ago below the floorboards of the hut used by renowned explorer Sir Ernest Shackleton. They had been buried in 1909.

这些珍贵的威士忌酒是著名探险家欧内斯特·沙克尔顿1909年进行南极探险时埋在探险小屋地板下的，3年前方得重见天日。

4·We love the brand voice that Joel [Ewanick] has achieved, and that's rare in automotive these days, said Mr. Sanfilippo.

“我们喜欢乔尔[伊万·尼克]打造的品牌形象，这在最近的汽车行业是弥足珍贵的，”圣菲利普先生说。

5·That wood carving is very rare.

那个木雕非常珍贵。

稀少

1·Some birds which were once a common sight are now becoming rare.

有些曾经随处可见的鸟类现在日益稀少。《牛津词典》

2·Certain species will probably become very rare.

某些物种可能会变得非常稀少。

3·That has provoked a debate about whether the phenomenon is an aberration, or whether natural selection favours it, at least when it is rare in a population.

这激起了一场争论，到底这种现象是误差，或是自然选择偏爱的结果(至少当它在群体中只占有稀少比例时)。

4·Another is that they're extremely rare, forming only in the densest star clusters.

另一个原因是它们非常稀少，只在最密集的恒星群中才有。

5·There are many more scenarios, both subtle and rare, but it happens.

仍有许多其他的情况，或是微妙或是稀少，但它会发生。

少有

1·She smiled with a rare flash of humour.

她以少有的一丝诙谐微笑了。《牛津词典》

2·It is one of the rare places in the world where the desert meets the sea.

那是世界上沙漠和海洋相接的少有的地方之一。《柯林斯英汉双解大词典》

3·It packs a snooze button for the rare little night owl.

它为那些少有的小夜猫子考虑，设了一个“打盹”按钮。

4·You know what I mean, one of those rare days when everything is right and nothing is wrong.

你知道我的意思，就是那种少有的一切正常、毫无波澜的日子。

5·It's rare for journalists to be on this flight, but photographer Charles Smith and I have gotten clearance to join the 16 crew members, officers, and scientists.

记者随同飞行是少有的事，但是，我和摄影师查尔斯·史密斯已得到许可，参加由机组成员和科学家组成的16人小组。

不可多得

1·They are rare examples of bucking the trend that, as countries get richer, their birth rates fall.

他们是反对国家富裕，出生率降低这一信条的不可多得的范例。

2·It's rare to find a work of fiction that can be hysterically funny at some points, while deeply moving and disturbing at others. It's even more unusual to find such qualities in a work of non-fiction.

如果一部虚构作品能够做到时而歇斯底里的滑稽，时而引起深深感动和不安，已经不可多得，而在纪实性文学中这些特质更是千载难逢。

3·So Hulu is in the rare position of being able to increase inventory (through new content and more views) and make money from it.

也就是说，随着更多的服务内容及新视频的加入，Hulu的用户在不断地增长，同时也可以籍此盈利，这实在是个不可多得的优势。

4·From the architect. Creating a new access to one of the most remarkable cultural monuments and landscapes in Europe is a rare challenge for the design of a causeway.

描述来自建筑事务所。在欧洲一个著名的文化古迹风景区创建一个新的访问路径，这个堤道是一个不可多得的的设计挑战。

5·At the same time, there are 51 square kilometers near the center of the eight industrial park for auto parts manufacturing enterprises in Guangzhou to provide rare land resources.

同时，该中心附近还有51平方公里的八大工业园区，可为汽车零部件制造企业落户广州提供不可多得的土地资源。

(1)rare earth稀土元素的氧化物

(1)rare and[英国方言] 非常，极

(1)rare opportunity稀有机会，难得机会

(1)rare earth element[化]稀土元素

(1)rare metal稀有金属

(1)rare earth metal稀土金属