废寝忘食 (fèi qǐn wàng shí) | Meaning: (idiom) to skip one's sleep and meals; to be completely wrapped up in one's work | Chinese Idiom with Pinyin & Origin

(idiom) conscientious · assiduous兢兢业业jīng jīng yè yè

night and day (idiom); continuous strenuous effort夜以继日yè yǐ jì rì

so dedicated as to forget one's meals (idiom)发愤忘食fā fèn wàng shí

hardworking · diligent勤奋qín fèn

lit. to pierce the wall to steal a light (idiom) · fig. to study diligently in the face of hardship凿壁偷光záo bì tōu guāng

serve others without salary · attend to official duties on an empty stomach枵腹从公xiāo fù cóng gōng

(idiom) to skip one's sleep and meals; to be completely wrapped up in one's work