VOA慢速英语:维生素C有助于防治肺结核吗？

tuberculosis (TB)– n. a serious disease that mainly affects the lungs

vitamin –n. a chemical substance often found in food that helps the body stay healthy

supplement - n. something that is added to something else in order to make it complete

dormant – adj. not doing anything at this time: not active but able to become

anti-oxidents – n. a substance that is added to food and other products to prevent harmful chemical reactions in which oxygen is combined with other substances.

test tube – n. a glass container that is shaped like a tube which is closed at one end and that is used especially in science experiments

journal – n. magazine that publishes on a certantc.

sterilization – v. effort that leads to killing bacteria

the bottom line –idiom the most important point

option –n. one of several choices or possibilities