rare and的用法和樣例：
例句
- Spies are trained to keep their mouths shut and they don't often lose the habit.That's why true spy stories are extremely rare, and personally I have never seen one in print that rang completely true.
間諜們一般都訓練得嚴守秘密，而且他們一般都會那麼做，所以說真正的間諜故事是極其少見的，就我個人來說，還沒看過一本讀起來真正讓人感覺真實的間諜故事。 - A child with a grown-up partiality for rare and expensive foods.
一個對稀少的昂貴食物的偏愛不斷增長的孩子
