a. 相互作用的, 相互影响的【计】 交互, 人机对话的

interval/interview/international/interrupt/interactive/intercity/interdependent
记忆：
1. 前缀inter表示“在……之中，相互”，interval [ 5intEvEl] n. 间隔, 距离, 幕间休息 He visits me at regular intervals. 他定期来看我。
2. interview [ 5intEvju:] vt. 接见, 会见 He interviewed lots of senior officials of different countries. 他采访了不同国家的许多高级官员。
3. international [ 7intE(:)5nAFEnEl ] adj. 国际的 No one expected that it would turn out to be an international focus. 没有人想到这会成为一起国际关注的焦点事件。
4. interrupt [ 7intE5rQpt] vt. 打断，打扰 Sorry to interrupt you. 对不起要打搅你了。
5. interactive [ 7intEr5Aktive] adj. 互相作用的, 互动的 The class should be interactive. 课堂应该是互动的。
6. intercity [ 7intE5siti] adj. 城市间的 The intercity competition is more heated than ever. 城市间的竞争空前激烈。
7. interdependent [ 7intE(:)di5pendEnt ] adj. 相互依赖的, 互助的 The members of the family are usually interdependent emotionally. 家庭成员之间通常感情上相互信赖。
另类阅读：
During the interval of the conference, I interviewed the professor who studied international trade. He said the economy of the countries are interdependent and interactive. If one was interrupted, the others would suffer loss, too.