rare and

常見(jiàn)例句

This is pretty rare and is usually found only in large organizations.
這種方法很少見(jiàn)，通常只是在大型組織中看到。
However, promotions are rare and must be earned rather than demanded.
可是，晉升是很少，而且是可掙而不可要求的。
The sample size is of course very small, with specimens rare and samples for experimentation rarer.
樣本當(dāng)然非常小，因?yàn)闃?biāo)本很少而能用來(lái)做實(shí)驗(yàn)的樣本就更少了。

Because his wife Millicent liked to invite her friends to big dinners and serve them rare and expensive food and wine.
These cells are rare and so it's been hard to identify them, that's part of it.
這些細(xì)胞太少了,所以很難找到,這是原因之一
耶魯公開(kāi)課 - 生物醫(yī)學(xué)工程探索課程節(jié)選
You have a full monarchy in the sense that both-- we in America talk about the separation of church and state, that is a very rare and unusual thing in the history of the world.
他有一個(gè)完全政教合一的君主政權(quán),在美國(guó)政教是分離的,這在世界歷史上很少見(jiàn)
耶魯公開(kāi)課 - 古希臘歷史簡(jiǎn)介課程節(jié)選

Problems are rare and if something ever came up Amy got it resolved with customer service.
FORBES: How Amy Promotes This Old House
Printing presses started cranking out books, a few at first, and they were rare and expensive.
FORBES: Knowledge Is Power? Those Days are Long Gone
However, large-scale natural disasters--though rare and well spaced out in time--undoubtedly have that power.
FORBES: Magazine Article