Definition: because of something Level: B2
由于健康状况，他不能吃乳制品。
He can't eat dairy ___on ___account ___of a medical condition.
由于天气不好，野餐被取消了。
The picnic was cancelled ___on ___account ___of the bad weather.
由于大雾，许多航班延误了。
Many flights were delayed ___on ___account ___of the heavy fog.
