研究显示:一种廉价抗抑郁药可将患新冠疾病风险降低约三分之一

obsessive-compulsive disorder – n. a mental condition in which a person has frequent, unwanted thoughts or feelings that make them feel that they have to repeat particular actions

inflammation – n. a red, painful and often swollen area in or on a part of the body

immune system – n. the cells and tissue in the body that fights against infection

placebo – n. a substance that is given to a patient in a medical study that has no physical effect

course – n. a fixed number of regular medical treatments

recommendation – n. a piece of advice about what to do in a particular situation

complement – v. to complete or enhance by providing something additional