VOA慢速英语:中美洲寻求庇护者抵达美国边境

caravan - n. a group of vehicles (such as cars or wagons) traveling together

disgrace - v. to cause (someone) to feel ashamed

gang - n. a group of criminals

persecute - v. to treat (someone) cruelly or unfairly especially because of race or religious or political beliefs

overwhelm - v. to cause (someone) to have too many things to deal with

prosecution - n. the act or process of holding a trial against a person who is accused of a crime to see if that person is guilty

ticket - n. a piece of paper that allows you to see a show, participate in an event, travel on a vehicle, etc.

tweet - n. to write a brief message (called a tweet) on the Internet using a service called Twitter