这里的step up是什么意思?

母语人士的回答
Rebecca
step up这里step up表示采取行动或在需要帮助时采取行动。另外, step up也意味着他开始努力工作以拥有一些东西。示例1: He stepped it up at work to try and get the promotion. (他努力工作以得到晋升。)例2: After their father died, the oldest son really stepped up and took on more responsibilities to take care of the family. (他们的父亲去世后,长子出去做越来越多的责任来照顾家庭。)