Word · Frequency #10927
placebo
安慰剂
核心释义
a harmless, inactive substance given like a medicine, often to a patient or as a control in drug trials
- 1.
不含活性成分的假药；无效的治疗。
A dummy medicine containing no active ingredients; an inert treatment.
- 2.
无药效或惰性药物,用作安慰剂或用于药物疗效实验的对照组。
an innocuous or inert medication; given as a pacifier or to the control group in experiments on the efficacy of a drug
- 3.
为亡者日课所唱的晚祷。
The vespers sung in the office for the dead.
- 4.
(罗马天主教会)为亡者日课中的晚祷。
(Roman Catholic Church) vespers of the office for the dead
不含活性成分的假药；无效的治疗。；无药效或惰性药物,用作安慰剂或用于药物疗效实验的对照组。；为亡者日课所唱的晚祷。；(罗马天主教会)为亡者日课中的晚祷。
用法In use
The doctor gave some patients a placebo instead of the real medicine.
用法提示：placebo 作名词，指不含有效成分的安慰剂。
Participants in the control group received placebos during the trial.
用法提示：placebo 的复数形式 placebos 作宾语。
She felt better after taking the pill, but it was only a placebo.
用法提示：placebo 作表语，说明该药并无实际疗效。
give sb a placebo
give 后接双宾语，也可说 give a placebo to sb。
In the trial, the researchers gave half of the patients a placebo.
在这项试验中，研究人员给一半患者服用了安慰剂。
take a placebo
take 表示“服用”，用于口服药物。
相关词与表达Connections
搭配Collocations
- placebo effect
- 安慰剂效应
- The placebo effect can make patients feel better even when they take an inactive pill.安慰剂效应能让患者即使服用无效药片也感觉好转。
- placebo-controlled trial
- 安慰剂对照试验
- A placebo-controlled trial is the gold standard for testing new drugs.安慰剂对照试验是检验新药的金标准。
- placebo group
- 安慰剂组
- Participants in the placebo group did not receive the real drug.安慰剂组的参与者没有服用真药。
- receive a placebo
- 接受安慰剂
- Half of the patients received a placebo instead of the real drug.半数患者接受的是安慰剂而不是真药。
- placebo pill
学习提示Learner notes
记忆技巧Memory Tip
谐音联想：placebo 像“please 宝”，医生递上假药时说“please（请）放心”，病人得到安慰——安慰剂。
语境与语域Context & Register
语域：mixed 常见场景：clinical trials and medical research、everyday talk about beliefs or ineffective remedies placebo 在医学和科研语境中属于标准术语，比较正式；在日常口语中谈论‘安慰剂效应’时也可以用。通常不会用于俚语或很随便的场合，建议根据实际场景选择正式或中性的说法。
发音与拼写Pronunciation & Spelling
No common English word rhymes exactly with placebo (/pləˈsiːboʊ/). Libido offers a similar rhythm and the long /iː/ + /oʊ/ ending, but its final consonant is /d/, not /b/. Combo and jumbo share only the unstressed final /boʊ/ and the spelling -bo, with stress on the first syllable. Place, placid, and placenta are spelling lookalikes that are pronounced very differently: /pleɪs/, /ˈplæsɪd/, /pləˈsentə/.
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
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Dictionary facts from ECDICT, WIKTIONARY.