■ hair

通常是不可数名词，只用单数。

• His hair is black.他的头发是黑色的。

但是也可以作为可数名词指一根根的头发。

• So why has he got two blonde hairs on his jacket?那么为什么他外套上有两根金色头发呢？

• blessed
• blockbusting
• bloody mary
• blossom
• boast
• boat
• body
• book
• border on
• bore
• bored
• bored 与 boring
• boring
• born
• borrow
• both
• bother
• bow and arrow
• bread
• break a leg
• breakfast
• bridge
• bring
• bring 与 take
• british