work up to

• • 逐步发展到，逐渐达到
  • 逐步升职至：

    It took him ten years to work up to the position of general manager.

    他干了十年才升到总经理的位置。

  • 逐渐提高到
  • 准备讲，渐渐转入某一话题：

    She is working up to mentioning more pay.

    她准备提一提加工资的事。

  • 激发得，使激动得：

    What he said worked the crowd up to a fever of excitement.

    他的话使听众群情激奋。