inactivity什么意思、怎么读？单词用法、记忆法、发音音标、反义词辨析、词语翻译、例句造句

inactivity 音标：[ˌɪnæk'tɪvətɪ]

n.不活动；不活跃；静止；不活泼

◆记忆方法一：
词根词缀记忆法：inactivity不活跃（in不＋activity活跃）,act=to do , to drive,表示“行动，做”

ADJ-GRADED. 无所作为的;不活动的;闲置的. Someone or something that is inactive is not doing anything or is not working.