VOA慢速英语:American History: Occupation of Philippines Makes US a Major Power in the Far East

cut off切〔隔〕断, 阻碍

例句：Our troops cut off the enemy's retreat.
      我们的军队切断了敌人的退路。

2.No nation, he said, should interfere with the rights or powers of any other nation in China.

interfere with干预, 阻挠, 妨碍, 阻止

例句：That interferes with my plan.
      那干扰了我的计划。

      The noise interferes with my work.
      这噪音妨碍我的工作。

3.The new policy was tested very soon. Within a month of Hay's announcement, violence broke out against foreigners in China.

break out(战争、打斗等不愉快事件)突然发生, 爆发

例句：Something unexpected always breaks out in this area.
      在这一地区总有意想不到的事情发生。