efficacy

'efikәsi

托福GRE Collins 1

n. capacity or power to produce a desired effect

n. 功效, 效力
[医] 效能, 功效, 效验

Collins 星级

9,115

BNC 频率

6,281

使用频率

efficacy 由前缀 ef-（表示“向外”或“出”）和词根 fic（来自拉丁语 facere，意为“做”）结合而成，表示“有效性”或“产生效果”。

例句

1. The efficacy of the new medicine has been tested in several clinical trials.

新药的有效性已经在几项临床试验中进行了测试。

2. Many people are curious about the efficacy of herbal remedies.

很多人对草药疗法的有效性感到好奇。

3. The study showed that the efficacy of the vaccine was very high.

研究显示疫苗的有效性非常高。