VOA慢速英语:研究称额外补充维生素不能预防心脏病和中风

supplement –n. something added (to a person's diet) that makes it more complete or healthier

pattern –n. the use of certain things (like foods) that take place in a regular or repeated way

legume –n. plants related to peas and beans that grow seeds in pods

cardiovascular –adj. related to the heart or blood vessels that carry blood around the body

saturated fat –n. a form of fat commonly found in animal products and some plant products such as coconut

randomly –adv. done in a way that is not planned or decided

convince –v. to persuade

author – n. the writer of a paper or book; the creator of something

focus –v. to direct attention to something specific