英语语法分析

Could you please explain, to which project arrearage belongs?

麻烦你可以解释一下该笔欠款是属于什么项目的吗？

Check account with the financial department and control the arrearage.

与财务部门帐目核对及应收欠款的控制。

Mental development arrearage is in children period is discovered namely more.

精神发育迟滞多是在儿童时期即被发现。