任职
rènzhí · HSK 7
be in office
💼 任 appoint/duty + 职 post = be appointed to a post, serve in office
任 carries the sense of being entrusted with a duty; 职 is the official post or position. Together 任职 (rènzhí) means to hold or serve in a post. The 耳 radical on the left of 职 nods to its old link with hearing orders on the job.
任 — person radical 亻 + 壬 (phonetic)
任 combines the person radical 亻 with 壬, which supplies the sound. The original sense centered on a person bearing a load or burden, which extended naturally to 'carrying responsibility,' 'duty,' and 'to appoint someone to a post.' Modern uses like 任务 (task) and 责任 (responsibility) preserve this core idea.