VOA慢速英语:美国部分学校社交隔离面临预算限制

superintendent–n. the leader or head of a school system

rolling out –v. to introduce a new system

recommendation–n. to make suggestions about something

factor–n. one of the items to be considered in a decision

district–n. an area within a town that determines which school a student attends

mask–n. clothe worn over the face to avoid disease

obligation–n the state of being in debt to something, financially or morally