向上爬；钻门子to further one's own interests; to ingratiate oneself with powerful people so as to advance one's own career

• 钻营到一个位置

  get a position by currying favour with powerful people

• 钻营到一个秘书的职位

  get a job as a secretary by fawning on the boss

• 善于钻营的人

  someone who's good at currying favour with powerful people