VOA慢速英语:2020年对教师和学生来说都是艰难的一年

facilitate – v. to make something easier

fade – v. to lose force or strength

strain – n. a specific kind of closely related living things including germs

psychological – adj. of or relating to the mind

anxiety - n. fear or nervousness about what might happen

infrastructure - n. the basic equipment and structures (such as roads and bridges) that are needed for a country, region, or organization to function properly