check up on

检查, 调查

例句与用法：

Check up on this information.

核查一下这项情报。

The police were checking up on what the man had told them.

警察正对那人所讲的话进行全面检查。

The police are checking up on him.

警方正在调查他。

An experiment was made to check up on the reliability of certain criteria.

已经进行了一项实验以检查某些标准的可靠性。