on account of 的意思是“由於，基於”。
例句:
We?canceled?the?beach?picnic?on?account?of?the?bad?weather?forecast.
因為天氣預報說會變天，所以我們取消了海灘野餐。
We?got?married?on?account?of?the?baby.
我們是奉子成婚。
與on account of意思相近的詞組有：because of, because of the fact that, for the sake of, by reason of, owing to 等等。