VOA慢速英语:挪威研究称人类智商下滑数十年

vocabulary – n. all the words you know in a particular language

score – n. the number of points someone gets in a test or game

factor – n. one of the things affecting a particular situation, decision, event, etc.

relatively – adv. used to say something is true or correct as a general statement, even if not entirely true or correct

sibling – n. a sister or brother

reflect – v. to show or be a sign of something

task – n. piece of work that has been given to someone

critical thinking – n. disciplined thinking that is clear, open-minded, and informed by evidence

artificial intelligence – n. ability of a machine to reproduce human behavior

relevance – n. the degree to which something is related or useful to what is happening or being talked about