placebos是什么意思？

placebos

• n. （给无实际治疗需要者的）安慰剂( placebo的名词复数 )，安慰物，宽心话，（试验药物用的）无效对照剂；

例句

• Others said they had ordered placebos for their patients after all other treatments had failed. 其他人说他们在所有治疗都失败之后给病人开安慰剂.
• Yes doctors, at least doctors in Chicago occasionally purposely prescribe placebos. 是的,医生, 至少是芝加哥的医生们偶尔会特意开药方安慰剂.
• But comparable numbers of those who received placebos also improved. 但是吃安慰剂的人的病情也改善了.

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  （用于测试新药效力的）无效对照剂；（用以安慰想象自己得病的人的）安慰剂
  A placebo is a substance with no effects that a doctor gives to a patient instead of a drug. Placebos are used when testing new drugs or sometimes when a patient has imagined their illness.