兼任

Verb

 * 1) to hold several jobs at once
 * 2) to have a part-time job

Noun

 * 1) concurrent job; moonlighting
 * 2) part-time work; part-time job

Noun

 * 1) serving in two dual capacities, serving in two posts concurrently

Verb

 * 1) serve in two jobs or positions of responsibility concurrently, double as A and B