step down
动词- Used other than figuratively or idiomatically: see step, down. · to step down carefully from a train
- To resign or retire from an office or position of authority.
- To reduce gradually or incrementally.
在真实文章中学习step down
注册免费账号后，在图书馆中把鼠标悬停在任何单词上即可看到意思，还能听朗读、收藏单词并按你的记忆安排复习，看到每本书你已经认识多少。