Jīngguò fùshěn, wǒmen fāxiàn le jǐ tiáo lòuwǎngzhīyú.
On review we found a few items that had slipped through the cracks.
Tips
history
Condensed from 《史记·酷吏列传序》: 网漏于吞舟之鱼 — the law's net, Sima Qian wrote, was so loose that fish big enough to swallow boats slipped through. The idiom keeps that sense of one that got away.
usage
Usually negative — refers to criminals, fugitives, or errors that escaped detection. Measure word is 条 (fish) or 个 (person). Contrast with 网开一面 (deliberately leaving an opening).