VOA慢速英语:Trump Wants to Admit Immigrants Based on Job Skills

principle - n. a basic truth or theory

ought – v. used to say or suggest what should be done

strain – v. something that is very difficult to deal with and that causes harm or trouble

preference – n. an advantage that is given to some people or things and not to others

score – n. points awarded for some achievement

advanced – adj. beyond the basic level