VOA慢速英语:美国学生数学和阅读成绩不及格

assessment – n. the act of making a judgment about how well someone does something

achievement – n. something that has been done or achieved through effort : a result of hard work

according to – prep. as stated, reported, or recorded by (someone or something)

voucher - n. a document that gives you the right to get something (such as a product or service) without paying for it

charter school – n. in the U.S., a school that is established by a charter, is run by teachers, parents, etc., and uses tax money but does not have to be run according to the rules of a city or state

random – adj. chosen, done, etc., without a particular plan or pattern

select – v. to choose (someone or something) from a group

disappointing – adj. failing to fulfill someone's hopes or expectation

superintendent – n. a person who directs or manages a place, department, organization