live in Cao camp but have the heart in Han camp (idiom)
to be somewhere while longing to be somewhere else
Definitions (Wiktionary)
phrase, idiomatic
subjugated by one authority, while still remaining loyal to another; not loyal
不少大學生身在曹營心在漢 剛簽約就想跳槽
不少大学生身在曹营心在汉 刚签约就想跳槽
bù shào dà xué shēng shēn zài cáo yíng xīn zài hàn ， gāng qiān yuē jiù xiǎng tiào cáo A growing number of university graduates are not loyal to their employers; right after they've signed a contract of employment, they're already thinking of jumping ship
A growing number of university graduates are not loyal to their employers; right after they've signed a contract of employment, they're already thinking of jumping ship