卧底 wòdǐ undercover Origin Definitions Defs Strokes Stroke Words Sentences Sents 2 sentences 他已经卧底三个礼拜了。 tā yǐjing wò dǐ sānge lǐbài le. He's been undercover for three weeks. Source: OpenSubtitles我们见面的那晚你是卧底吗？ wǒmen jiàn miàn de nà wǎn nǐ shì wò dǐ ma? Were you undercover the night we met? Source: OpenSubtitles