1. The police employed force to break up the crowd.
   警察使用暴力驱散群众。
2. The reactionary police cleared out the pickets by force.
   反动警察用武力赶走了罢工纠察队员们。
3. The police had to use force to hold back the crowd.
   警察不得不用武力阻止人群。
4. Police operated under the umbrella of the security forces.
   警方在保安部队的掩护下采取了行动.
5. The police force is 500 below strength.
   警察的人数尚需五百。

　1个名词解释