慢速英语:American History: Harrison’s Presidency Marked by Anger Over Trusts

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例句：The police enforce the law.
      警察执法。

2.committee n.委员会; 全体委员

例句：The committee has[have] decided to dismiss him.
      委员会已决定辞退他。

      The committee which was[who were] responsible for this decision would consider it over again.
      对这一决定负责的委员会是会重新考虑它的。

3.commerce n.（尤指国际间的）贸易；商业；商务

例句：They drew up plans aimed at expanding commerce.
      他们拟定了发展商业的计划。
 
4.harsh adj.严厉的, 严酷的