记忆方法
双解例句
小知识
When you really want to do something right, really nail it, really get at what you were going for — you're trying to be efficacious, or produce the effect you intended.
The word efficacious is made up of the Latin efficere meaning “accomplish” and the suffix -ious meaning “full of.” Something that's efficacious is full of accomplishment. An efficacious medicine is one that cures you of the ailment you had. An efficacious recipe is one that comes out the way you intended it to taste. Remember that efficacious has two fs and two cs in it and you'll be efficacious in your spelling of the word.
实用短语
单词用法
词根词缀
词根: fic
1. =face,表示”脸,面”; 2. =do,make 表示”做,制作”
adj.
superficial 肤浅的super在……上面+fic做+ial……的→在表面上做
efficacious 有效的, 灵验的efficacy[[n.功效,效能,效力]]男→adj.有效的, 灵验的
fictitious 假的,虚构的fict=fic做,制作+itious……的→做出来的
n.
efficacy 功效,效能,效力ef出+fic做,制作+acy状态,结果→做出来的结果→功效
fiction 虚构,编造;小说fict=fic做,制作+ion表名词→做出的故事
profit 利润,收益pro很多+fit=fic做→做很多,做得好→利润
反义词
同根词
词根:efficacy
adj.efficient有效率的;有能力的;生效的
adv.efficiently有效地;效率高地(efficient的副词形式)
efficaciously有效地;灵验地
n.efficacy功效,效力