VOA慢速英语:美国总统特朗普踏入朝鲜 重启会谈

demarcation – n. something that shows a limit

sanctions – n. an action that is taken or an order given that is meant to force a country to obey international laws or rules, usually done by stopping or limiting trade

address – n. to deal with: to treat

relief – n. the removal of something that is painful or unpleasant