Petrochemicals today account for one fourth of all the chemicals made, in ten years this amount is expected to double. 石油化工产品现在已占所有化学制品的四分之一，十年后预计这个数目还要加倍。
Students account for 50% of our customers. 在我们的顾客中,学生占了一半。
He has been asked to account for his conduct. 他被要求解释他的行为。
He could not account for his absence from school. 他无法说明他旷课的原因。
The treasurer has to account for the money paid to him. 财务负责人必须说明交给他的钱是怎样用的。
Please account for your disgraceful conduct. 对你的可耻行为请作解释。
