wò​dǐ

undercover

Senses

卧底/ 臥底 wò​dǐ undercover

to work undercover; to go deep into an enemy's organization or a criminal gang to gather information or provide help from the inside

卧底/ 臥底 wò​dǐ mole

an undercover agent or insider; a mole planted within a group

References

synonym 卧底/臥底 内应/內應