inefficacy
US /ɪnˈef.ə.kə.si/
UK /ɪnˈef.ə.kə.si/
名词
1.
无效
the failure, especially of a medicine or a method of achieving something, to produce the intended result:
示例:
•
These statistics show the inefficacy of the current system with regard to reducing crime.
在 Lingoland 学习这个单词