VOA慢速英语:美国三分之一的STEM学生换专业

major – n. the main subject studied by a college or university student

bachelor's degree(s) – n. a degree that is given to a student by a college or university usually after four years of study

course(s) – n. a series of classes about a particular subject in a school

screening – n. the act of examining people or things in order to decide if they are suitable for a particular purpose

regime – n. a system of management

encourage(s) – v. to make someone more determined, hopeful, or confident

filter(s) – v. to remove something unwanted

abstract – adj. relating to or involving general ideas or qualities rather than specific people, objects, or actions

allow for – p.v. to make something possible

elementary school – n. a school in the U.S. for young children