idle的詞根的派生詞是idleness,idleness中文意思是n。 懶惰;閒散;失業
Idleness is not just a vacation, an indulgence or a vice; it is as indispensable to the brain as Vitamin D is to the body。懶惰不僅僅是度假、放縱或惡習;它對於大腦就像維生素 D 對身體一樣不可或缺。
idle的詞根應該是idle