VOA慢速英语:全世界都在努力应对影响假期的限制措施

lockdown –n. preventing people from going out in an effort to prevent the spread of disease; to keep prisoners in their cells because of an incident

vulnerable –adj. likely to be harmed, able to be hurt easily

dose –n. the amount of a medicine needed to fight disease

relax –v. to make or become less severe, strict or disciplined