?无效性
... 无效果 = ineffectually 无效性 = ineffectuality 无效的 = invalidated ...
You are letting an old, discredited, fairy tale drive you into ineffectuality and irrelevance!
FORBES: Death By Fairy Tale: After Occupy, "The 99% Spring" Fizzle
英汉双解词典包含3185865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。