漏网之鱼

1. • a fish that escaped the net (idiom)

     lit.

2. • sb or sth that slips through the net

     fig.

Character by character

• 漏(lòu)leak
• 网(wǎng)net
• 之(zhī)(possessive particle, literary equivalent of 的 de)
• 鱼(yú)surname Yu