VOA慢速英语:为什么越南对俄罗斯报道的新冠疫苗感兴趣？

sanction – n. an action that is taken or an order that is given to force a country to obey international laws by limiting or stopping trade with that country, by not allowing economic aid for that country, etc. — usually plural

dose – n. the amount of a medicine, drug, or vitamin that is taken at one time

apply – v. to use (an idea, method, law, etc.) in a particular situation

pandemic – n. an occurrence in which a disease spreads very quickly and affects a large number of people over a wide area or throughout the world

negligent – adj. failing to take proper or normal care of something or someone