英语词汇invalidity怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	invalidity
释义	in·va·lid·i·ty /ˌɪnvəˈlɪdətɪ/ n. 1. 无效；无价值 the invalidity of a passport 护照的失效 2. 久病，病弱；伤残 an invalidity pension 病残养老金
随便看	research and development research assistant researched re-searched researcher researcher researcher, researchist researchers researcher's researches re-searches re-searches' researchful researchful researching re-searching researchist researchists researchist's research libraries research library research reactor re-search's reseat reseau

英汉双解词典包含548777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。