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单词库 \ 英汉词典 \

placebos是什么意思

placebos

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.