VOA慢速英语:North Korea Expels BBC Journalists

apparently – adv. according to what you have heard or read, or to the way something appears

interrogate – v. to ask somebody a lot of questions over a long period of time, sometimes in an aggressive way

monitor – v. to watch closely or keep track of

sovereignty – n. complete power to govern a country

assertion – n. a statement that you strongly believe something to be true

sanction– n. an official order that restricts trade or contacts with a country

significance – n. the importance of something, especially when it has an impact on something in the future