前美国海军海豹突击队员52岁入读耶鲁大学

academia – n. the life, community, or world of teachers, schools, and education

desert – v. to leave the military without permission and without any plans of returning

post-traumatic stress – n. a mental condition that can affect a person who has had a very shocking or difficult experience, such as fighting in a war

alcohol – n. a drink containing the chemical ethanol

ballistic vest – n. clothing that protects against missile attacks

scholar – n. a person who has studied a subject for a long time and knows a lot about it

silly – adj. foolish

opportunity – n. a chance; a series of events that makes something possible

professional – adj. relating or connected to work or a job

beneficial – adj. producing good or helpful results or effects