1 [C,U] infusion of sth (into sth)(formal 正式) the act of adding sth to sth else in order to make it stronger or more successful 注入；输送: an infusion of new talent into teaching 将有才华的新人送到教学岗位The company needs an infusion of new blood (= new employees with new ideas). 这公司需要注入新鲜血液。

2 [C] a drink or medicine made by putting HERBS (= plants whose leaves are used to give flavour to sth or as medicine) in hot water 用热水泡制的饮料或草药

3 [C,U] (medical医学) the act of introducing a liquid substance into the body, especially into a VEIN 输液，输注（尤指到静脉）