VOA慢速英语:美国降低征兵目标

recruit – n. a person who has recently joined the armed forces

challenge – adj. difficult in a way that is usually interesting

standard – n. a level of quality or success that is considered acceptable or desirable

graduate – n. a person who has been recognized for completing a study program at a school, college, or university

waiver – n. the act of choosing not to use or require something that you are allowed to have or that is usually required

senior – n. a student in the year before graduating from a school