VOA慢速英语:American Prisoner Released by North Korea

短语讲解：

1.The 56-year-old former basketball star has visited North Korea at least four times.
 
at least 至少
例句：He's been away for at least a week.
他走了总有一个星期吧。

2.During Rodman’s last trip to North Korea in 2014, he took part in a basketball game with other NBA players and sang “happy birthday” to Kim, who attended the game.

take part in 参加…，参与…活动
例句：If you want knowledge, you must take part in the practice of changing reality.
你要有知识，你就得参加变革现实的实践。