zhufubang001 看绝望的主妇学高频短语：Step up
Step up：to step forward so as to take an action or take on more responsibility when there is a need or opportunity for it, especially at a crucial time, （挺身而出、伺机而动）
使用这个短语，主要分为两种场景：1、在别人需要帮助『尤其是周围其它人犹豫不决或畏缩不前的关键时刻』挺身而出；2、在某个时间点采取必要行动。
英语高频短语”Make amends”在美剧语料库中的相关例句：
E.G.1：I would have thought you’d step up when things were difficult, not hold the donation hostage.
翻译：我以为遇到困难你会出面解决，而不是拿捐款作交换条件。（摘自美剧『纸牌屋』S01E04）
E.G.2：You want to step up, then do what I goddamn told you to do and don’t come to me.
翻译：你想出头就按照老子说的去办，不要出了事情就找我！ （摘自美剧『金装律师』S05E11）
