1. big picture（事情的）主要部分；重点

Concentrate on the big picture for now. Don’t worry about the minor details.

先把精神集中在重点上，不要担心次要的细节。

2. bite the dust死亡，报销

This pen just bite the dust.

这支钢笔报销了。

3. bleeding heart老好人

The liberal candidate was accused by his conservation opponent of being a bleeding heart on welfare issues.

自由派候选人在福利问题上被保守派对手斥为老好人。

4. bad news讨厌鬼

Marcy is nothing but bad news around here.

马西珍视这一带的讨厌鬼。

5. bad blood不和，敌意

Ever since Howard borrowed 5,000 dollars from Mike and never paid him back, there has been bad blood between them.

自从霍华德向麦克借了5，000美元不还之后，他们之间就有了嫌隙。