ㄗㄡˇzǒuㄇㄚˇㄈㄨˋㄖㄣˋrèn

  1. 官吏就職·無名氏·》:小生京師一舉及第所除洛陽縣宰走馬赴任。」走馬上任」。

to ride to take up an official appointment (idiom)​; to take on a job with alacrity, to undertake a task