基本解释n.安慰剂；安慰话同根派生 英汉例句用作名词 (n.)The placebo has been found to work with a lot of different cases.人们已发现安慰剂能在很多不同的病例中发挥作用。Does endowment insurance really matter to everyone? Or is it just a placebo?养老保险对我们真的重要吗？还是只是一种心理安慰？