音标:[.efi'keiʃәs] ;
a. 有效的, 灵验的
a. marked by qualities giving the power to produce an intended effect

考试类型:[GRE]
词性分布:
形容词100%

efficacious的用法和样例:

例句

用作形容词(adj.)
  1. Vaccination for smallpox is efficacious.种牛痘防天花是有效的。
  2. This medicine is efficacious against heart disease.这个药封心脏病有效。
  3. The medicine is efficacious in stopping a cough.这种药在止咳方面很灵验。

经典引文

  • At present there is no convincing evidence that psychoanalytic treatment as such is efficacious.

    出自:P. Medawar
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