英语词汇efficacy的意思、用法及释义-英汉双解词典

单词	efficacy
释义	efficacy n[U] state or quality of being efficacious 有效性; 效能; 功效 test the efficacy of a new drug 测试新药的效能.
随便看	spied spiel spigot spike spikiness spiky spill spillage spillway spin spina bifida spinach spinal spinal column spinal cord spin bowler spindle spindly spin-drier spin-dry spine spine-chiller spine-chilling spineless spinelessly

英汉双解词典包含38652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。