a.[B]

1. 最初的；原始的；基本的；原有的
   a prime source of information

   信息的最初来源

2. 主要的；首位的
   The community's prime need is a new school.

   这个社区的第一需要是一所新学校。

3. 最好的，第一流的
   The show was on television during prime time, when everyone was watching.

   这节目在大家都看电视的黄金时间播映。

4. 青春的；血气方刚的
5. 【数】质数的，素数的

n.

1. 最初，初期[the S]
2. 黎明；春天[the S]
   the prime of the year

   春季

3. 青年；壮年；全盛时期[the S]
   He died in the prime of his life.

   他在壮年时死去。

4. 精华，最好部分[the S]
5. （常大写）晨经，晨祷[the S]
6. 【数】质数，素数[C]

vt.

1. 灌注，装填；为……装火药（或雷管）
   The gun was primed and ready.

   这炮已装上火药，准备就绪。

2. （注水或油等）使起动[（+with）]
3. 在……上涂底漆（或底色）
   You must prime the wood before you paint it.

   油漆这木制东西前，你得先在上面涂上底漆。

4. 使准备好
5. 事先给……指导；事先为……提供消息（或情报等）[（+with）]
   The man on trial had been carefully primed by his lawyer.

   这个受审人已得到他律师的仔细指点。

vi.

1. 作准备

adj.

1. of first importance; main; primary.
2. of the best possible quality; excellent.
   ▸having all the expected characteristics.
   ▸most suitable or likely.
3. (of a number) divisible only by itself and one (e.g. 2, 3, 5, 7, 11).

n.

1. a state or time of greatest vigour or success in a person's life.
   ▸archaic the beginning or earliest period.
2. a prime number.
3. Printing  a symbol (') written as a distinguishing mark or to denote minutes or feet.
4. Fencing  the first of the eight parrying positions. [Fr.]
5. a special section in a cycle race.
6. Christian Church  a service traditionally said at the first hour of the day (i.e. 6 a.m.), but now little used.

v.

1. make (something, especially a firearm or bomb) ready for use or action.
2. pour or spray liquid into (a pump) to facilitate its working.
   ▸inject extra fuel into (an engine) to facilitate starting.
   ▸(of a boiler) produce steam mixed with water.
3. prepare (someone) for a situation, especially by giving instructions or information.
4. Biology  & Medicine  induce a susceptibility in.
5. cover (a surface) with primer.