请输入您要查询的英文单词：
单词
efficacy
释义
ef·fi·cacy
BrE
/
ˈefɪkəsi
/
NAmE
/
ˈefɪkəsi
/
noun
[
U
]
(
formal
)
the
ability
of
sth
to
produce
the
results
that
are
wanted
功效；效验；效力
SYN
effectiveness
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英汉双解词典包含314281条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。
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更新时间：2026/10/10 0:39:12