VOA慢速英语:American History: Cleveland Returns to Office Facing Farm, Labor Unrest

pay back偿还

例句：I am sure that he will pay back every cent he owes you.
      我敢肯定他会分文不差地把欠款还给你。

      I must remember to pay you back for the concert tickets.
      我必须记住把买音乐会入场券的钱还给您。

2.After months of growing tension, the head of the company sent three hundred private security officers to break up the strike and protect non-union workers.

break up(使)散开, (使)解散

例句：The crowd broke up.
      人群散开了。

      They break up the meeting.
      他们散会了。