placebo-controlled編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看placebo-controlledplacebo-controlled — 形容詞形容詞1. relating to an experiment where one group gets a placebo1.形容詞釋義安慰劑對照的relating to an experiment where one group gets a placebo例句The placebo-controlled trial showed that the drug is effective.