VOA慢速英语:美国疾控要求11月1日各州做好接种疫苗准备

waiving –v. to officially say that will not require something that is normally required

facilities –n. (pl.) a building or equipment used for a specific purpose; something that makes an action, operation or activity easier to get done

timetable –n. a plan of things that need to be done and the time buy which they need to be completed

phase 3 –n. (medical) describes the part of drug tests that involves many people and is meant to find out if the drug causes bad reactions

stunt –n. something done to get the attention of the public

standard –n. a level of quality that is considered acceptable or is required

focus –v. to direct attention on something

vulnerable –n. easily hurt or harmed physically, mentally or emotionally