兼任用英语怎么说

hold two jobs at once (n.)part-time(adj.)

可以说part time或者 concurrent(ly)

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如果在公司职务兼任，If the company part-time,重点词语解释：如果if; in case; in the event of; supposing that; in the event职务duties; post; job; function; business兼任part-time; hold a concurrent post; part time; pluralism